Classical Modernity
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In many periodizations of
human history Human history or world history is the record of humankind from prehistory to the present. Early modern human, Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers. They Early expansions of hominin ...
, the late modern period followed the
early modern period The early modern period is a Periodization, historical period that is defined either as part of or as immediately preceding the modern period, with divisions based primarily on the history of Europe and the broader concept of modernity. There i ...
. It began around 1800 and, depending on the author, either ended with the beginning of
contemporary history Contemporary history, in English-language historiography, is a subset of modern history that describes the historical period from about 1945 to the present. In the social sciences, contemporary history is also continuous with, and related t ...
in 1945, or includes the contemporary history period to the present day. Notable historical events in the late 18th century, that marked the transition from the early modern period to the late modern period, include: the
American Revolution The American Revolution (1765–1783) was a colonial rebellion and war of independence in which the Thirteen Colonies broke from British America, British rule to form the United States of America. The revolution culminated in the American ...
(1765–91), French Revolution (1789–99), and beginning of the
Industrial Revolution The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a transitional period of the global economy toward more widespread, efficient and stable manufacturing processes, succee ...
around 1760.


Definition


Possible end of the Late Modern period

There are differing approaches to defining a possible end or conclusion to the Late Modern period, or indeed whether it might be considered to have concluded at all. If that period is indeed concluded, then there are various options for how to label the subsequent era, i.e. the current contemporary era, as described below. * The
Information Age The Information Age is a historical period that began in the mid-20th century. It is characterized by a rapid shift from traditional industries, as established during the Industrial Revolution, to an economy centered on information technology ...
is a
historical period In historiography, periodization is the process or study of categorizing the past into discrete, quantified, and named blocks of time for the purpose of study or analysis.Adam Rabinowitz.It's about time: historical periodization and Linked Ancie ...
that began in the mid-20th century, characterized by a rapid epochal shift from traditional industry established by the
Industrial Revolution The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a transitional period of the global economy toward more widespread, efficient and stable manufacturing processes, succee ...
to an economy primarily based upon information technology. * Some researchers typify the end of the Late Modern period by the concerns for the environment which began in 1950, as this marks the end of modern confidence about humanity's domination of the natural world. * The ''
Postmodern Postmodernism encompasses a variety of artistic, cultural, and philosophical movements that claim to mark a break from modernism. They have in common the conviction that it is no longer possible to rely upon previous ways of depicting the wo ...
era'' is the economic or cultural state or condition of society which is said to exist
modernity Modernity, a topic in the humanities and social sciences, is both a historical period (the modern era) and the ensemble of particular Society, socio-Culture, cultural Norm (social), norms, attitudes and practices that arose in the wake of the ...
. Some schools of thought hold that modernity ended in the late 20th century – in the 1980s or early 1990s – and that it was replaced by postmodernity, and still others would extend modernity to cover the developments denoted by postmodernity, while some believe that modernity ended sometime after World War II. The idea of the post-modern condition is sometimes characterized as a culture stripped of its capacity to function in any linear or autonomous state, such as e.g. regressive isolationism, as opposed to the progressive mind state of
modernism Modernism was an early 20th-century movement in literature, visual arts, and music that emphasized experimentation, abstraction, and Subjectivity and objectivity (philosophy), subjective experience. Philosophy, politics, architecture, and soc ...
. :Postmodernism is an intellectual stance or mode of discourse defined by an attitude of
skepticism Skepticism ( US) or scepticism ( UK) is a questioning attitude or doubt toward knowledge claims that are seen as mere belief or dogma. For example, if a person is skeptical about claims made by their government about an ongoing war then the p ...
toward what it describes as the grand narratives and
ideologies An ideology is a set of beliefs or values attributed to a person or group of persons, especially those held for reasons that are not purely about belief in certain knowledge, in which "practical elements are as prominent as theoretical ones". Form ...
of
modernism Modernism was an early 20th-century movement in literature, visual arts, and music that emphasized experimentation, abstraction, and Subjectivity and objectivity (philosophy), subjective experience. Philosophy, politics, architecture, and soc ...
. It questions or criticizes viewpoints associated with Enlightenment rationality dating back to the 17th century. * The ''
Post-industrial society In sociology, the post-industrial society is the stage of society's development when the service sector generates more wealth than the manufacturing sector of the economy. The term was originated by Alain Touraine and is closely related t ...
'' is the stage of society's development when the
service sector The tertiary sector of the economy, generally known as the service sector, is the third of the three economic sectors in the three-sector model (also known as the economic cycle). The others are the primary sector (raw materials) and the ...
generates more wealth than the
manufacturing sector In macroeconomics, the secondary sector of the economy is an economic sector in the three-sector theory that describes the role of manufacturing. It encompasses industries that produce a finished, usable product or are involved in construction ...
of the economy. The term was originated by Alain Touraine and is closely related to similar sociological theoretical concepts such as
post-Fordism The concept of post-Fordism was originally invented by the economist Robin Murray in the British magazine ''Marxism Today'' in 1988. It referred to the emergence of new production methods defined by flexible production, the individualization of ...
,
information society An information society is a society or subculture where the usage, Content creation, creation, information distribution, distribution, manipulation and information integration, integration of information is a significant activity. Its main drive ...
,
knowledge economy The knowledge economy, or knowledge-based economy, is an economic system in which the production of goods and services is based principally on knowledge-intensive activities that contribute to advancement in technical and scientific innovation. ...
,
post-industrial economy A post-industrial economy is a period of growth within an industrialized economy or nation in which the relative importance of manufacturing reduces and that of services, information, and research grows. Such economies are often marked by a dec ...
,
liquid modernity Liquid is a state of matter with a definite volume but no fixed shape. Liquids adapt to the shape of their container and are nearly incompressible, maintaining their volume even under pressure. The density of a liquid is usually close to that ...
, and
network society Network society is the set of social, political, economic, and cultural changes brought about by the widespread use of networked digital information and communication technologies. The intellectual origins of the idea can be traced back to the wo ...
. They all can be used in economics or social science disciplines as a general theoretical backdrop in
research design Research design refers to the overall strategy utilized to answer research questions. A research design typically outlines the theories and models underlying a project; the research question(s) of a project; a strategy for gathering data and info ...
. As the term has been used, a few common themes have begun to emerge. Firstly, the economy undergoes a transition from the production of goods to the provision of services; also, producing ideas is the main way to grow the economy. The term is used by various researchers and social scientists.


Possible subdivisions

Additionally, the Late Modern period has been divided into various smaller periods; there are differing opinions and approaches on which time periods to assert in doing so. * ''Cold War era.'' The
Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
was a period of
geopolitical Geopolitics () is the study of the effects of Earth's geography on politics and international relations. Geopolitics usually refers to countries and relations between them, it may also focus on two other kinds of states: ''de facto'' independen ...
tension between the United States and the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
and their respective allies, the
Western Bloc The Western Bloc, also known as the Capitalist Bloc, the Freedom Bloc, the Free Bloc, and the American Bloc, was an unofficial coalition of countries that were officially allied with the United States during the Cold War (1947–1991). While ...
and the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc (Combloc), the Socialist Bloc, the Workers Bloc, and the Soviet Bloc, was an unofficial coalition of communist states of Central and Eastern Europe, Asia, Africa, and Latin America that were a ...
, which began following
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. Historians do not fully agree on its starting and ending points, but the period is generally considered to span the 1947
Truman Doctrine The Truman Doctrine is a Foreign policy of the United States, U.S. foreign policy that pledges American support for democratic nations against Authoritarianism, authoritarian threats. The doctrine originated with the primary goal of countering ...
(March 12, 1947) to the 1991
Dissolution of the Soviet Union The Soviet Union was formally dissolved as a sovereign state and subject of international law on 26 December 1991 by Declaration No. 142-N of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. Declaration No. 142-Н of ...
(December 26, 1991). * The ''
Digital Revolution The Information Age is a History by period, historical period that began in the mid-20th century. It is characterized by a rapid shift from traditional industries, as established during the Industrial Revolution, to an economy centered on info ...
'' (also known as the ''Third Industrial Revolution'') is the shift from
mechanical Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations o ...
and analogue electronic technology to
digital electronics Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. It deals with the relationship between Binary number, binary inputs and outputs by passing electrical s ...
which began in the latter half of the 20th century, with the adoption and proliferation of digital computers and digital record-keeping, that continues to the present day. Central to this revolution is the
mass production Mass production, also known as mass production, series production, series manufacture, or continuous production, is the production of substantial amounts of standardized products in a constant flow, including and especially on assembly lines ...
and widespread use of
digital logic A logic gate is a device that performs a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has, for ...
,
MOSFET upright=1.3, Two power MOSFETs in amperes">A in the ''on'' state, dissipating up to about 100 watt">W and controlling a load of over 2000 W. A matchstick is pictured for scale. In electronics, the metal–oxide–semiconductor field- ...
s (MOS
transistor A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electric power, power. It is one of the basic building blocks of modern electronics. It is composed of semicondu ...
s),
integrated circuit An integrated circuit (IC), also known as a microchip or simply chip, is a set of electronic circuits, consisting of various electronic components (such as transistors, resistors, and capacitors) and their interconnections. These components a ...
(IC) chips, and their derived technologies, including computers,
microprocessor A microprocessor is a computer processor (computing), processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, a ...
s, digital cellular phones, and the Internet. These technological innovations have transformed traditional production and business techniques.


Industrial revolutions

The development of the
steam engine A steam engine is a heat engine that performs Work (physics), mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a Cylinder (locomotive), cyl ...
started the Industrial Revolution in Great Britain. The steam engine was created to pump water from coal mines, enabling them to be deepened beyond
groundwater Groundwater is the water present beneath Earth's surface in rock and Pore space in soil, soil pore spaces and in the fractures of stratum, rock formations. About 30 percent of all readily available fresh water in the world is groundwater. A unit ...
levels. The date of the Industrial Revolution is not exact, but some studies suggest it occurred after the
East India Company The East India Company (EIC) was an English, and later British, joint-stock company that was founded in 1600 and dissolved in 1874. It was formed to Indian Ocean trade, trade in the Indian Ocean region, initially with the East Indies (South A ...
's conquests of
Mughal Bengal The Bengal Subah ( Bengali: সুবাহ বাংলা, ), also referred to as Mughal Bengal and Bengal State (after 1717), was one of the puppet states and the largest subdivision of The Mughal Empire encompassing much of the Bengal ...
,
Kingdom of Mysore The Kingdom of Mysore was a geopolitical realm in southern India founded in around 1399 in the vicinity of the modern-day city of Mysore and prevailed until 1950. The territorial boundaries and the form of government transmuted substantially ...
and the rest of
India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
, which were already observing the
proto-industrialization Proto-industrialization is the regional development, alongside commercial agriculture, of rural handicraft production for external markets. Cottage industries in parts of Europe between the 16th and 19th centuries had long been a niche topic of ...
.
Eric Hobsbawm Eric John Ernest Hobsbawm (; 9 June 1917 – 1 October 2012) was a British historian of the rise of industrial capitalism, socialism and nationalism. His best-known works include his tetralogy about what he called the "long 19th century" (''Th ...
held that it "broke out" in the 1780s and was not fully felt until the 1830s or 1840s, while T.S. Ashton held that it occurred roughly between 1760 and 1830 (in effect the reigns of
George III George III (George William Frederick; 4 June 173829 January 1820) was King of Great Britain and King of Ireland, Ireland from 25 October 1760 until his death in 1820. The Acts of Union 1800 unified Kingdom of Great Britain, Great Britain and ...
, The
Regency In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...
, and
George IV George IV (George Augustus Frederick; 12 August 1762 – 26 June 1830) was King of the United Kingdom of Great Britain and Ireland and King of Hanover from 29 January 1820 until his death in 1830. At the time of his accession to the throne, h ...
).


19th century

Historians define the 19th century historical era as stretching from 1815 (the
Congress of Vienna The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
) to 1914 (the outbreak of the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
). Alternatively,
Eric Hobsbawm Eric John Ernest Hobsbawm (; 9 June 1917 – 1 October 2012) was a British historian of the rise of industrial capitalism, socialism and nationalism. His best-known works include his tetralogy about what he called the "long 19th century" (''Th ...
defined the "Long Nineteenth Century" as spanning the years 1789 to 1914.


European imperialism and empires

In the 1800s and early 1900s, the great and powerful Spanish, Portuguese, Ottoman, and Mughal Empires began to break apart. Spain, which was at one time unrivaled in Europe, had been declining for a long time when it was crippled by Napoleon Bonaparte's invasion. The Ottoman Empire was wracked with a series of revolutions, resulting with the Ottoman's only holding a small region that surrounded the capital, Istanbul. The Mughal Empire, which was descended from the Mongol Khanate, was bested by the upcoming
Maratha Confederacy The Maratha Empire, also referred to as the Maratha Confederacy, was an early modern polity in the Indian subcontinent. It comprised the realms of the Peshwa and four major independent Maratha states under the nominal leadership of the former. ...
. All was going well for the
Maratha The Marathi people (; Marathi: , ''Marāṭhī lōk'') or Marathis (Marathi: मराठी, ''Marāṭhī'') are an Indo-Aryan ethnolinguistic group who are native to Maharashtra in western India. They natively speak Marathi, an Indo-A ...
s until the British took an interest in the riches of India and the British ended up ruling not just the boundaries of Modern India, but also Pakistan, Burma, Nepal, Bangladesh and some Southern Regions of Afghanistan. Portugal's vast territory of Brazil reformed into the independent Empire of Brazil. With the defeat of Napoleonic France, Britain became undoubtedly the most powerful country in the world, and by the end of the First World War controlled a Quarter of the world's population and a third of its surface. However, the power of the British Empire did not end on land, since it had the greatest navy on the planet. Electricity, steel, and petroleum enabled Germany to become a great
international power Engie Energy International, formerly International Power, is a multinational electricity generation company headquartered in Newcastle upon Tyne, and a wholly owned subsidiary of the French company Engie (formerly GDF Suez). The company was for ...
that raced to create empires of its own. Substantial
decolonization of the Americas The decolonization of the Americas occurred over several centuries as most of the countries in the Americas gained their independence from European rule. The American Revolution was the first in the Americas, and the British defeat in the Amer ...
occurred through various revolutions and wars of independence fought by new countries in the Americas against European colonizers in late 18th and early-to-mid-19th centuries. The
Spanish American wars of independence The Spanish American wars of independence () took place across the Spanish Empire during the early 19th century. The struggles in both hemispheres began shortly after the outbreak of the Peninsular War, forming part of the broader context of the ...
lasted from 1808 until 1829, directly related to the Napoleonic French invasion of Spain. The conflict started with short-lived governing juntas established in Chuquisaca and Quito opposing the composition of the Supreme Central Junta of Seville. When the Central Junta fell to the French, numerous new Juntas appeared all across the Americas, eventually resulting in a chain of newly independent countries stretching from Argentina and Chile in the south, to Mexico in the north. After the death of the king Ferdinand VII, in 1833, only Cuba and Puerto Rico remained under Spanish rule, until the Spanish–American War in 1898. Unlike the Spanish, the Portuguese did not divide their colonial territory in America. The captaincies they created were subdued to a centralized administration in Salvador (later relocated to Rio de Janeiro) which reported directly to the Portuguese Crown until its independence in 1822, becoming the
Empire of Brazil The Empire of Brazil was a 19th-century state that broadly comprised the territories which form modern Brazil and Uruguay until the latter achieved independence in 1828. The empire's government was a Representative democracy, representative Par ...
. The
Meiji Restoration The , referred to at the time as the , and also known as the Meiji Renovation, Revolution, Regeneration, Reform, or Renewal, was a political event that restored Imperial House of Japan, imperial rule to Japan in 1868 under Emperor Meiji. Althoug ...
was a chain of events that led to enormous changes in Japan's political and social structure that was taking a firm hold at the beginning of the
Meiji era The was an Japanese era name, era of History of Japan, Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feu ...
which coincided the opening of Japan by the arrival of the
Black Ships The Black Ships (in , Edo period term) were the names given to both Portuguese merchant ships and American warships arriving in Japan in the 16th and 19th centuries respectively. In 1543, Portuguese initiated the first contacts, establishing a ...
of
Commodore Commodore may refer to: Ranks * Commodore (rank), a naval rank ** Commodore (Royal Navy), in the United Kingdom ** Commodore (India), in India ** Commodore (United States) ** Commodore (Canada) ** Commodore (Finland) ** Commodore (Germany) or ' ...
Matthew Perry Matthew Langford Perry (August 19, 1969 – October 28, 2023) was an American and Canadian actor, comedian, director and screenwriter. He gained international fame for starring as Chandler Bing on the NBC television sitcom ''Friends'' (1994– ...
and made
Imperial Japan The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
a
great power A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
.
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
and
Qing dynasty The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
China failed to keep pace with the other world powers which led to massive social unrest in both empires. The Qing Dynasty's military power weakened during the 19th century, and faced with international pressure, massive
rebellion Rebellion is an uprising that resists and is organized against one's government. A rebel is a person who engages in a rebellion. A rebel group is a consciously coordinated group that seeks to gain political control over an entire state or a ...
s and defeats in wars, the dynasty declined after the mid-19th century. European powers controlled parts of Oceania, with French
New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...
from 1853 and
French Polynesia French Polynesia ( ; ; ) is an overseas collectivity of France and its sole #Governance, overseas country. It comprises 121 geographically dispersed islands and atolls stretching over more than in the Pacific Ocean, South Pacific Ocean. The t ...
from 1889; the Germans established colonies in
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...
in 1884, and
Samoa Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...
in 1900. The United States expanded into the Pacific with Hawaii becoming a
U.S. territory In the United States, a territory is any extent of region under the sovereign jurisdiction of the federal government of the United States, including all waters (around islands or continental tracts). The United States asserts sovereign rights for ...
from 1898. Disagreements between the US, Germany and UK over Samoa led to the Tripartite Convention of 1899.


British Victorian era

The Victorian era of the United Kingdom was the period of
Queen Victoria Victoria (Alexandrina Victoria; 24 May 1819 – 22 January 1901) was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until Death and state funeral of Queen Victoria, her death in January 1901. Her reign of 63 year ...
's reign from June 1837 to January 1901. This was a long period of prosperity for the British people, as profits gained from the overseas British Empire, as well as from industrial improvements at home, allowed a large, educated middle class to develop. Some scholars would extend the beginning of the period—as defined by a variety of sensibilities and political games that have come to be associated with the Victorians—back five years to the passage of the
Reform Act 1832 The Representation of the People Act 1832 (also known as the Reform Act 1832, Great Reform Act or First Reform Act) was an act of the Parliament of the United Kingdom (indexed as 2 & 3 Will. 4. c. 45), enacted by the Whig government of Pri ...
. In Britain's "imperial century", victory over Napoleon left Britain without any serious international rival, other than Russia in central Asia. Unchallenged at sea, Britain adopted the role of global policeman, a state of affairs later known as the ''
Pax Britannica ''Pax Britannica'' (Latin for , modelled after '' Pax Romana'') refers to the relative peace between the great powers in the time period roughly bounded by the Napoleonic Wars and World War I. During this time, the British Empire became the ...
'', and a foreign policy of "
splendid isolation Splendid isolation is a term used to describe the 19th-century British diplomatic practice of avoiding permanent alliances from 1815 to 1902. The concept developed as early as 1822, when Britain left the post-1815 Concert of Europe, and continu ...
". Alongside the formal control it exerted over its own colonies, Britain's dominant position in world trade meant that it effectively controlled the economies of many nominally independent countries, such as China,
Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
and
Siam Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...
, which has been generally characterized as "
informal empire The term ''informal empire'' describes the spheres of influence which a polity may develop that translate into a degree of influence over a region or country, which is not a formal colony, protectorate, Tributary state, tributary or vassal sta ...
". Of note during this time was the
Anglo-Zulu War The Anglo-Zulu War was fought in present-day South Africa from January to early July 1879 between forces of the British Empire and the Zulu Kingdom. Two famous battles of the war were the Zulu victory at Battle of Isandlwana, Isandlwana and th ...
, which was fought in 1879 between the British Empire and the Zulu Empire. British imperial strength was underpinned by the
steamship A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships ...
and the
telegraph Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas ...
, new technologies invented in the second half of the 19th century, allowing it to control and defend the Empire. By 1902, the British Empire was linked together by a network of telegraph cables, the so-called
All Red Line The All Red Line was a system of electrical telegraphs that linked much of the British Empire. It was inaugurated on 31 October 1902. The informal name derives from the common practice of colouring the territory of the British Empire red or p ...
. Growing until 1922, around of territory and roughly 458 million people were added to the British Empire. The British established colonies in Australia in 1788, New Zealand in 1840 and
Fiji Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...
in 1872, with much of Oceania becoming part of the British Empire.


French governments and conflicts

The
Bourbon Restoration Bourbon Restoration may refer to: France under the House of Bourbon: * Bourbon Restoration in France (1814, after the French revolution and Napoleonic era, until 1830; interrupted by the Hundred Days in 1815) Spain under the Spanish Bourbons: * Ab ...
followed the ousting of Napoleon I of France in 1814. The Allies restored the Bourbon Dynasty to the French throne. The ensuing period is called the Restoration, following French usage, and is characterized by a sharp conservative reaction and the re-establishment of the Roman Catholic Church as a power in French politics. The
July Monarchy The July Monarchy (), officially the ''Kingdom of France'' (), was a liberalism, liberal constitutional monarchy in France under , starting on 9 August 1830, after the revolutionary victory of the July Revolution of 1830, and ending 26 Februar ...
was a period of liberal constitutional monarchy in France under King Louis-Philippe starting with the July Revolution (or Three Glorious Days) of 1830 and ending with the Revolution of 1848. The Second Empire was the Imperial Bonapartist regime of Napoleon III from 1852 to 1870, between the Second Republic and the Third Republic, in France. The
Franco-Prussian War The Franco-Prussian War or Franco-German War, often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 Janua ...
was a conflict between France and Prussia, while Prussia was backed up by the North German Confederation, of which it was a member, and the South German states of Baden, Württemberg and Bavaria. The complete Prussian and German victory brought about the final unification of Germany under King Wilhelm I of Prussia. It also marked the downfall of Napoleon III and the end of the Second French Empire, which was replaced by the Third Republic. As part of the settlement, almost all of the territory of Alsace-Lorraine was taken by Prussia to become a part of Germany, which it would retain until the end of World War I. The
French Third Republic The French Third Republic (, sometimes written as ) was the system of government adopted in France from 4 September 1870, when the Second French Empire collapsed during the Franco-Prussian War, until 10 July 1940, after the Fall of France durin ...
was the republican government of France between the end of the Second French Empire following the defeat of Louis-Napoléon in the Franco-Prussian war in 1870 and the Vichy Regime after the invasion of France by the German Third Reich in 1940. The Third Republic endured seventy years, making it the most long-lasting regime in France since the collapse of the Ancien Régime in the French Revolution of 1789.


Italian unification

Italian unification The unification of Italy ( ), also known as the Risorgimento (; ), was the 19th century political and social movement that in 1861 ended in the annexation of various states of the Italian peninsula and its outlying isles to the Kingdom of ...
was the political and social movement that annexed different states of the Italian peninsula into the single state of Italy in the 19th century. There is a lack of consensus on the exact dates for the beginning and the end of this period, but many scholars agree that the process began with the end of Napoleonic rule and the
Congress of Vienna The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
in 1815, and approximately ended with the
Franco-Prussian War The Franco-Prussian War or Franco-German War, often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 Janua ...
in 1871, though the last '' città irredente'' did not join the
Kingdom of Italy The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
until after World War I.


Slavery and abolition

Slavery Slavery is the ownership of a person as property, especially in regards to their labour. Slavery typically involves compulsory work, with the slave's location of work and residence dictated by the party that holds them in bondage. Enslavemen ...
was greatly reduced around the world in the 19th century. Following a successful slave revolt in Haiti, Britain forced the
Barbary pirates The Barbary corsairs, Barbary pirates, Ottoman corsairs, or naval mujahideen (in Muslim sources) were mainly Muslim corsairs and privateers who operated from the largely independent Barbary states. This area was known in Europe as the Barba ...
to halt their practice of kidnapping and enslaving Europeans, and passed the
Slavery Abolition Act 1833 The Slavery Abolition Act 1833 ( 3 & 4 Will. 4. c. 73) was an act of the Parliament of the United Kingdom, which abolished slavery in the British Empire by way of compensated emancipation. The act was legislated by Whig Prime Minister Charl ...
to ban slavery throughout its domain, and charged its navy with ending the global
slave trade Slave trade may refer to: * History of slavery - overview of slavery It may also refer to slave trades in specific countries, areas: * Al-Andalus slave trade * Atlantic slave trade ** Brazilian slave trade ** Bristol slave trade ** Danish sl ...
. Slavery was then abolished in
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
(1861),
America The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
(1865), and
Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
(1888).


African colonization

Following the abolition of the slave trade in 1807 and propelled by economic exploitation, the
Scramble for Africa The Scramble for Africa was the invasion, conquest, and colonialism, colonisation of most of Africa by seven Western European powers driven by the Second Industrial Revolution during the late 19th century and early 20th century in the era of ...
was initiated formally at the Berlin West Africa Conference in 1884–1885. The Berlin Conference attempted to avoid war among the European powers by allowing the European rival countries to carve up the continent of Africa into national colonies. Africans were not consulted. The major European powers laid claim to the areas of Africa where they could exhibit a sphere of influence over the area. These claims did not have to have any substantial land holdings or treaties to be legitimate. The European power that demonstrated its control over a territory accepted the mandate to rule that region as a national colony. The European nation that held the claim developed and benefited from their colony's commercial interests without having to fear rival European competition. With the colonial claim came the underlying assumption that the European power that exerted control would use its mandate to offer protection and provide welfare for its colonial peoples, however, this principle remained more theory than practice. There were many documented instances of material and moral conditions deteriorating for native Africans in the late nineteenth and early twentieth centuries under European colonial rule, to the point where the colonial experience for them has been described as "hell on earth." At the time of the
Berlin Conference The Berlin Conference of 1884–1885 was a meeting of colonial powers that concluded with the signing of the General Act of Berlin,
, Africa contained one-fifth of the world's population living in one-quarter of the world's land area. However, from Europe's perspective, they were dividing an unknown continent. European countries established a few coastal colonies in Africa by the mid-nineteenth century, which included
Cape Colony The Cape Colony (), also known as the Cape of Good Hope, was a British Empire, British colony in present-day South Africa named after the Cape of Good Hope. It existed from 1795 to 1802, and again from 1806 to 1910, when it united with three ...
(Great Britain),
Angola Angola, officially the Republic of Angola, is a country on the west-Central Africa, central coast of Southern Africa. It is the second-largest Portuguese-speaking world, Portuguese-speaking (Lusophone) country in both total area and List of c ...
(Portugal), and
Algeria Algeria, officially the People's Democratic Republic of Algeria, is a country in the Maghreb region of North Africa. It is bordered to Algeria–Tunisia border, the northeast by Tunisia; to Algeria–Libya border, the east by Libya; to Alger ...
(France), but until the late nineteenth century Europe largely traded with free African states without feeling the need for territorial possession. Until the 1880s most of Africa remained uncharted, with western maps from the period generally showing blank spaces for the continent's interior. From the 1880s to 1914, the European powers expanded their control across the African continent, competing with each other for Africa's land and resources. Great Britain controlled various colonial holdings in East Africa that spanned the length of the African continent from Egypt in the north to South Africa. The French gained major ground in West Africa, and the Portuguese held colonies in southern Africa. Germany, Italy, and Spain established a small number of colonies at various points throughout the continent, which included German East Africa (Tanganyika) and German Southwest Africa for Germany, Eritrea and Libya for Italy, and the Canary Islands and Rio de Oro in northwestern Africa for Spain. Finally, for King Leopold (ruled from 1865 to 1909), there was the large "piece of that great African cake" known as the Congo, which became his personal fiefdom. By 1914, almost the entire continent was under European control.
Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...
, which was settled by freed American slaves in the 1820s, and Abyssinia (
Ethiopia Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Ken ...
) in eastern Africa were the last remaining independent African states.


Meiji Japan

Around the end of the 19th century and into the 20th century, the
Meiji era The was an Japanese era name, era of History of Japan, Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feu ...
occurred during the reign of the Meiji Emperor. During this time, Japan started its modernization and rose to world power status. This
era name A regnal year is a year of the reign of a sovereign, from the Latin meaning kingdom, rule. Regnal years considered the date as an ordinal, not a cardinal number. For example, a monarch could have a first year of rule, a second year of rule, a t ...
means "Enlightened Rule". In Japan, the Meiji Restoration started in the 1860s, marking the rapid modernization by the Japanese themselves along European lines. Much research has focused on the issues of discontinuity versus continuity with the previous Tokugawa Period. It was not until the beginning of the Meiji Era that the Japanese government began taking modernization seriously. Japan expanded its military production base by opening arsenals in various locations. The hyobusho (war office) was replaced with a War Department and a Naval Department. The
samurai The samurai () were members of the warrior class in Japan. They were originally provincial warriors who came from wealthy landowning families who could afford to train their men to be mounted archers. In the 8th century AD, the imperial court d ...
class suffered great disappointment the following years. Laws were instituted that required every able-bodied male Japanese citizen, regardless of class, to serve a mandatory term of three years with the first reserves and two additional years with the second reserves. This action, the deathblow for the samurai warriors and their ''daimyōs'', initially met resistance from both the peasant and warrior alike. The peasant class interpreted the term for military service, ketsu-eki ("blood tax") literally, and attempted to avoid service by any means necessary. The Japanese government began modelling their ground forces after the French military. The French government contributed greatly to the training of Japanese officers. Many were employed at the military academy in Kyoto, and many more still were feverishly translating French field manuals for use in the Japanese ranks. Japan's modernized military gave Japan the opportunity to engage in Imperialism with its victory against the
Qing Empire The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
in the
First Sino-Japanese War The First Sino-Japanese War (25 July 189417 April 1895), or the First China–Japan War, was a conflict between the Qing dynasty of China and the Empire of Japan primarily over influence in Joseon, Korea. In Chinese it is commonly known as th ...
Japan annexed
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...
,
Korea Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically Division of Korea, divided at or near the 38th parallel north, 3 ...
and the Chinese province of
Shandong Shandong is a coastal Provinces of China, province in East China. Shandong has played a major role in Chinese history since the beginning of Chinese civilization along the lower reaches of the Yellow River. It has served as a pivotal cultural ...
. After the death of the Meiji Emperor, the Taishō Emperor took the throne, the Taishō period was a time of democratic reform granting democratic rights to all Japanese men. Foreigners would be instrumental in aiding in Japan's modernization. A key foreign observer of the remarkable and rapid changes in Japanese society in this period was
Ernest Mason Satow Sir Ernest Mason Satow (30 June 1843 – 26 August 1929), was a British diplomat, scholar and Japanologist. He is better known in Japan, where he was known as , than in Britain or the other countries in which he served as a diplomat. He was ...
.


United States in the 19th century


Antebellum expansion

The
Antebellum Age The ''Antebellum'' South era (from ) was a period in the history of the Southern United States that extended from the conclusion of the War of 1812 to the start of the American Civil War in 1861. This era was marked by the prevalent practi ...
was a period of increasing division in the country based on the growth of slavery in the
American South The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, Dixieland, or simply the South) is census regions United States Census Bureau. It is between the Atlantic Ocean and the ...
and in the western territories of
Kansas Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...
and
Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...
that eventually led to the
Civil War A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
in 1861. The Antebellum Period is often considered to have begun with the
Kansas–Nebraska Act The Kansas–Nebraska Act of 1854 () was a territorial organic act that created the territories of Kansas and Nebraska. It was drafted by Democratic Senator Stephen A. Douglas, passed by the 33rd United States Congress, and signed into law b ...
of 1854, although it may have begun as early as 1812. This period is also significant because it marked the transition of American manufacturing to the industrial revolution. "
Manifest destiny Manifest destiny was the belief in the 19th century in the United States, 19th-century United States that American pioneer, American settlers were destined to expand westward across North America, and that this belief was both obvious ("''m ...
" was the belief that the United States was destined to expand across the North American continent, from the Atlantic seaboard to the Pacific Ocean. During this time, the United States expanded to the Pacific Ocean—"from sea to shining sea"—largely defining the borders of the contiguous United States as they are today.


Civil War and Reconstruction

The American Civil War began when seven Southern slave states declared their
secession Secession is the formal withdrawal of a group from a Polity, political entity. The process begins once a group proclaims an act of secession (such as a declaration of independence). A secession attempt might be violent or peaceful, but the goal i ...
from the U.S. and formed the
Confederate States of America The Confederate States of America (CSA), also known as the Confederate States (C.S.), the Confederacy, or Dixieland, was an List of historical unrecognized states and dependencies, unrecognized breakaway republic in the Southern United State ...
, the Confederacy (four more states joined the Confederacy later). Led by
Jefferson Davis Jefferson F. Davis (June 3, 1808December 6, 1889) was an American politician who served as the only President of the Confederate States of America, president of the Confederate States from 1861 to 1865. He represented Mississippi in the Unite ...
, they fought against the U.S. federal government (the Union) under President
Abraham Lincoln Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...
, which was supported by all the free states and the five border slave states in the north. Northern leaders agreed that victory would require more than the end of fighting. Secession and Confederate nationalism had to be totally repudiated and all forms of slavery or quasi-slavery had to be eliminated. Lincoln proved effective in mobilizing support for the war goals, raising large armies and supplying them, avoiding foreign interference, and making the end of slavery a war goal. The Confederacy had a larger area than it could defend, and it failed to keep its ports open and its rivers clear as was the case in the
Battle of Vicksburg The siege of Vicksburg (May 18 – July 4, 1863) was the final major military action in the Vicksburg campaign of the American Civil War. In a series of maneuvers, Union Major General Ulysses S. Grant and his Army of the Tennessee crossed th ...
. The
North North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating Direction (geometry), direction or geography. Etymology T ...
kept up the pressure as the South could barely feed and clothe its soldiers. Its soldiers, especially those in the East under the command of General
Robert E. Lee Robert Edward Lee (January 19, 1807 – October 12, 1870) was a general officers in the Confederate States Army, Confederate general during the American Civil War, who was appointed the General in Chief of the Armies of the Confederate ...
proved highly resourceful until they finally were overwhelmed by Generals
Ulysses S. Grant Ulysses S. Grant (born Hiram Ulysses Grant; April 27, 1822July 23, 1885) was the 18th president of the United States, serving from 1869 to 1877. In 1865, as Commanding General of the United States Army, commanding general, Grant led the Uni ...
and
William T. Sherman William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is ...
in 1864–65. The
Reconstruction era The Reconstruction era was a period in History of the United States, US history that followed the American Civil War (1861-65) and was dominated by the legal, social, and political challenges of the Abolitionism in the United States, abol ...
(1863–77) began with the
Emancipation Proclamation The Emancipation Proclamation, officially Proclamation 95, was a presidential proclamation and executive order issued by United States President Abraham Lincoln on January 1, 1863, during the American Civil War. The Proclamation had the eff ...
in 1863, and included freedom, full citizenship and voting rights for Southern blacks. It was followed by a reaction that left the blacks in a second class status legally, politically, socially and economically until the 1960s.


The Gilded Age and legacy

During the Gilded Age, there was substantial growth in population in the United States and extravagant displays of wealth and excess of America's upper-class during the post-Civil War and post-Reconstruction era, in the late 19th century. The wealth polarization derived primarily from industrial and population expansion. The businessmen of the
Second Industrial Revolution The Second Industrial Revolution, also known as the Technological Revolution, was a phase of rapid Discovery (observation), scientific discovery, standardisation, mass production and industrialisation from the late 19th century into the early ...
created industrial towns and cities in the
Northeast The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west—eac ...
with new factories, and contributed to the creation of an ethnically diverse industrial working class which produced the wealth owned by rising super-rich industrialists and financiers called the "robber barons". An example is the company of
John D. Rockefeller John Davison Rockefeller Sr. (July 8, 1839 – May 23, 1937) was an American businessman and philanthropist. He was one of the List of richest Americans in history, wealthiest Americans of all time and one of the richest people in modern hist ...
, who was an important figure in shaping the new oil industry. Using highly effective tactics and aggressive practices, later widely criticized,
Standard Oil Standard Oil Company was a Trust (business), corporate trust in the petroleum industry that existed from 1882 to 1911. The origins of the trust lay in the operations of the Standard Oil of Ohio, Standard Oil Company (Ohio), which had been founde ...
absorbed or destroyed most of its competition. The creation of a modern industrial economy took place. With the creation of a transportation and communication infrastructure, the corporation became the dominant form of business organization and a managerial revolution transformed business operations. In 1890,
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
passed the
Sherman Antitrust Act The Sherman Antitrust Act of 1890 (, ) is a United States antitrust law which prescribes the rule of free competition among those engaged in commerce and consequently prohibits unfair monopolies. It was passed by Congress and is named for S ...
—the source of all American anti-monopoly laws. The law forbade every contract, scheme, deal, or conspiracy to restrain trade, though the phrase "restraint of trade" remained subjective. By the beginning of the 20th century, per capita income and
industrial production Industrial production is a measure of output of the industrial sector of the economy. The industrial sector includes manufacturing, mining, and utilities. Although these sectors contribute only a small portion of gross domestic product (GDP), they ...
in the United States exceeded that of any other country except Britain. Long hours and hazardous working conditions led many workers to attempt to form labor unions despite strong opposition from industrialists and the courts. But the courts did protect the marketplace, declaring the Standard Oil group to be an "unreasonable" monopoly under the
Sherman Antitrust Act The Sherman Antitrust Act of 1890 (, ) is a United States antitrust law which prescribes the rule of free competition among those engaged in commerce and consequently prohibits unfair monopolies. It was passed by Congress and is named for S ...
in 1911. It ordered Standard to break up into 34 independent companies with different boards of directors.


Science and philosophy in the 19th century

Replacing the
classical physics Classical physics refers to physics theories that are non-quantum or both non-quantum and non-relativistic, depending on the context. In historical discussions, ''classical physics'' refers to pre-1900 physics, while '' modern physics'' refers to ...
in use since the end of the scientific revolution, ''
modern physics Modern physics is a branch of physics that developed in the early 20th century and onward or branches greatly influenced by early 20th century physics. Notable branches of modern physics include quantum mechanics, special relativity, and genera ...
'' arose in the early 20th century with the advent of
quantum physics Quantum mechanics is the fundamental physical Scientific theory, theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the scale of atoms. Reprinted, Addison-Wesley, 1989, It is ...
, substituting mathematical studies for
experimental studies An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when ...
and examining
equation In mathematics, an equation is a mathematical formula that expresses the equality of two expressions, by connecting them with the equals sign . The word ''equation'' and its cognates in other languages may have subtly different meanings; for ...
s to build a theoretical structure. The
old quantum theory The old quantum theory is a collection of results from the years 1900–1925, which predate modern quantum mechanics. The theory was never complete or self-consistent, but was instead a set of heuristic corrections to classical mechanics. The th ...
was a collection of results which predate modern
quantum mechanics Quantum mechanics is the fundamental physical Scientific theory, theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the scale of atoms. Reprinted, Addison-Wesley, 1989, It is ...
, but were never complete or self-consistent. The collection of
heuristic A heuristic or heuristic technique (''problem solving'', '' mental shortcut'', ''rule of thumb'') is any approach to problem solving that employs a pragmatic method that is not fully optimized, perfected, or rationalized, but is nevertheless ...
prescriptions for quantum mechanics were the first corrections to
classical mechanics Classical mechanics is a Theoretical physics, physical theory describing the motion of objects such as projectiles, parts of Machine (mechanical), machinery, spacecraft, planets, stars, and galaxies. The development of classical mechanics inv ...
. Outside the realm of quantum physics, the various
aether theories In the history of physics, aether theories (or ether theories) proposed the existence of a medium, a space-filling substance or field as a transmission medium for the propagation of electromagnetic or gravitational forces. Since the development of ...
in classical physics, which supposed a " fifth element" such as the
Luminiferous aether Luminiferous aether or ether (''luminiferous'' meaning 'light-bearing') was the postulated Transmission medium, medium for the propagation of light. It was invoked to explain the ability of the apparently wave-based light to propagate through empt ...
, were nullified by the
Michelson–Morley experiment The Michelson–Morley experiment was an attempt to measure the motion of the Earth relative to the luminiferous aether, a supposed medium permeating space that was thought to be the carrier of light waves. The experiment was performed between ...
—an attempt to detect the motion of earth through the aether. In biology,
Darwinism ''Darwinism'' is a term used to describe a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others. The theory states that all species of organisms arise and develop through the natural sel ...
gained acceptance, promoting the concept of
adaptation In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the p ...
in the theory of
natural selection Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the Heredity, heritable traits characteristic of a population over generation ...
. The fields of
geology Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth ...
,
astronomy Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest includ ...
and
psychology Psychology is the scientific study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both consciousness, conscious and Unconscious mind, unconscious phenomena, and mental processes such as thoughts, feel ...
also made strides and gained new insights. In
medicine Medicine is the science and Praxis (process), practice of caring for patients, managing the Medical diagnosis, diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, ...
, there were advances in medical theory and treatments. Starting one-hundred years before the 20th century, the Enlightenment philosophy was challenged in various quarters around the 1900s. Developed from earlier secular traditions, modern
Humanist Humanism is a philosophical stance that emphasizes the individual and social potential, and agency of human beings, whom it considers the starting point for serious moral and philosophical inquiry. The meaning of the term "humanism" ha ...
ethical philosophies affirmed the dignity and worth of all people, based on the ability to determine right and wrong by appealing to universal human qualities, particularly
rationality Rationality is the quality of being guided by or based on reason. In this regard, a person acts rationally if they have a good reason for what they do, or a belief is rational if it is based on strong evidence. This quality can apply to an ab ...
, without resorting to the supernatural or alleged divine authority from religious texts. For liberal humanists such as
Rousseau Jean-Jacques Rousseau (, ; ; 28 June 1712 – 2 July 1778) was a Genevan philosopher ('' philosophe''), writer, and composer. His political philosophy influenced the progress of the Age of Enlightenment throughout Europe, as well as aspects ...
and
Kant Immanuel Kant (born Emanuel Kant; 22 April 1724 – 12 February 1804) was a German philosopher and one of the central Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemology, metaphysics, et ...
, the universal law of
reason Reason is the capacity of consciously applying logic by drawing valid conclusions from new or existing information, with the aim of seeking the truth. It is associated with such characteristically human activities as philosophy, religion, scien ...
guided the way toward total emancipation from any kind of tyranny. These ideas were challenged, for example by the
young Karl Marx The correct place of Karl Marx's early writings within his system as a whole has been a matter of great controversy. Some believe there is a ''break'' in Marx's development that divides his thought into two periods: the "Young Marx" is said to be ...
, who criticized the project of political emancipation (embodied in the form of human rights), asserting it to be symptomatic of the very dehumanization it was supposed to oppose. For
Friedrich Nietzsche Friedrich Wilhelm Nietzsche (15 October 1844 – 25 August 1900) was a German philosopher. He began his career as a classical philology, classical philologist, turning to philosophy early in his academic career. In 1869, aged 24, Nietzsche bec ...
, humanism was nothing more than a secular version of
theism Theism is broadly defined as the belief in the existence of at least one deity. In common parlance, or when contrasted with '' deism'', the term often describes the philosophical conception of God that is found in classical theism—or the co ...
. In his '' Genealogy of Morals'', he argues that human rights exist as a means for the weak to collectively constrain the strong. On this view, such rights do not facilitate emancipation of life, but rather deny it. In the 20th century, the notion that human beings are rationally autonomous was challenged by the concept that humans were driven by unconscious irrational desires.


Notable persons

Sigmund Freud Sigmund Freud ( ; ; born Sigismund Schlomo Freud; 6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis, a clinical method for evaluating and treating psychopathology, pathologies seen as originating fro ...
is renowned for his redefinition of
sexual desire Sexual desire is an emotion and motivational state characterized by an interest in sexual objects or activities, or by a drive to seek out sexual objects or to engage in sexual activities. It is an aspect of sexuality, which varies significantly ...
as the primary motivational energy of human life, as well as his therapeutic techniques, including the use of free association, his theory of transference in the therapeutic relationship, and the interpretation of dreams as sources of insight into unconscious desires.
Albert Einstein Albert Einstein (14 March 187918 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity. Einstein also made important contributions to quantum mechanics. His mass–energy equivalence f ...
is known for his theories of
special relativity In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between Spacetime, space and time. In Albert Einstein's 1905 paper, Annus Mirabilis papers#Special relativity, "On the Ele ...
and
general relativity General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the differential geometry, geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of grav ...
. He also made important contributions to
statistical mechanics In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities. Sometimes called statistical physics or statistical thermodynamics, its applicati ...
, especially his mathematical treatment of
Brownian motion Brownian motion is the random motion of particles suspended in a medium (a liquid or a gas). The traditional mathematical formulation of Brownian motion is that of the Wiener process, which is often called Brownian motion, even in mathematical ...
, his resolution of the paradox of specific heats, and his connection of fluctuations and dissipation. Despite his reservations about its interpretation, Einstein also made contributions to quantum mechanics and, indirectly,
quantum field theory In theoretical physics, quantum field theory (QFT) is a theoretical framework that combines Field theory (physics), field theory and the principle of relativity with ideas behind quantum mechanics. QFT is used in particle physics to construct phy ...
, primarily through his theoretical studies of the
photon A photon () is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless particles that can ...
.


Social Darwinism

At the end of the 19th century,
Social Darwinism Charles Darwin, after whom social Darwinism is named Social Darwinism is a body of pseudoscientific theories and societal practices that purport to apply biological concepts of natural selection and survival of the fittest to sociology, economi ...
was promoted and included the various ideologies based on a concept that competition among all individuals, groups, nations, or ideas was a "natural" framework for social evolution in human societies. In this view, society's advancement is dependent on the "
survival of the fittest "Survival of the fittest" is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success. In Darwinian terms, th ...
". The term was in fact coined by
Herbert Spencer Herbert Spencer (27 April 1820 – 8 December 1903) was an English polymath active as a philosopher, psychologist, biologist, sociologist, and anthropologist. Spencer originated the expression "survival of the fittest", which he coined in '' ...
and referred to in " The Gospel of Wealth" written by
Andrew Carnegie Andrew Carnegie ( , ; November 25, 1835August 11, 1919) was a Scottish-American industrialist and philanthropist. Carnegie led the expansion of the History of the iron and steel industry in the United States, American steel industry in the late ...
.


Marxist society

Karl Marx Karl Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, political theorist, economist, journalist, and revolutionary socialist. He is best-known for the 1848 pamphlet '' The Communist Manifesto'' (written with Friedrich Engels) ...
summarized his approach to history and politics in the opening line of the first chapter of ''
The Communist Manifesto ''The Communist Manifesto'' (), originally the ''Manifesto of the Communist Party'' (), is a political pamphlet written by Karl Marx and Friedrich Engels, commissioned by the Communist League and originally published in London in 1848. The ...
'' (1848). He wrote: :''The history of all hitherto existing society is the history of
class struggle In political science, the term class conflict, class struggle, or class war refers to the economic antagonism and political tension that exist among social classes because of clashing interests, competition for limited resources, and inequali ...
s.'' The ''Manifesto'' went through a number of editions from 1872 to 1890; notable new prefaces were written by Marx and Engels for the 1872 German edition, the 1882 Russian edition, the 1883 German edition, and the 1888 English edition. In general,
Marxism Marxism is a political philosophy and method of socioeconomic analysis. It uses a dialectical and materialist interpretation of historical development, better known as historical materialism, to analyse class relations, social conflict, ...
identified five (and one transitional) successive stages of development in Western Europe. #
Primitive communism Primitive communism is a way of describing the gift economies of hunter-gatherers throughout history, where resources and property hunted or gathered are shared with all members of a group in accordance with individual needs. In political sociolo ...
: as seen in cooperative tribal societies. #
Slavery Slavery is the ownership of a person as property, especially in regards to their labour. Slavery typically involves compulsory work, with the slave's location of work and residence dictated by the party that holds them in bondage. Enslavemen ...
: which develops when the tribe becomes a city-state. Aristocracy is born. #
Feudalism Feudalism, also known as the feudal system, was a combination of legal, economic, military, cultural, and political customs that flourished in Middle Ages, medieval Europe from the 9th to 15th centuries. Broadly defined, it was a way of struc ...
: aristocracy is the ruling class. Merchants develop into capitalists. #
Capitalism Capitalism is an economic system based on the private ownership of the means of production and their use for the purpose of obtaining profit. This socioeconomic system has developed historically through several stages and is defined by ...
: capitalists are the ruling class, who create and employ the true working class. # Dictatorship of the proletariat: workers gain class consciousness, overthrow the capitalists and take control over the
state State most commonly refers to: * State (polity), a centralized political organization that regulates law and society within a territory **Sovereign state, a sovereign polity in international law, commonly referred to as a country **Nation state, a ...
. #
Communism Communism () is a political sociology, sociopolitical, political philosophy, philosophical, and economic ideology, economic ideology within the history of socialism, socialist movement, whose goal is the creation of a communist society, a ...
: a
classless A classless society is a society in which no one is born into a social class like in a class society. Distinctions of wealth, income, education, culture, or social network might arise and would only be determined by individual experience an ...
and
stateless society A stateless society is a society that is not governed by a state. In stateless societies, there is little concentration of authority. Most positions of authority that do exist are very limited in power, and they are generally not perman ...
.


20th century

Major political developments saw the former
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
lose most of its remaining political power over
commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...
countries. The
Trans-Siberian Railway The Trans-Siberian Railway, historically known as the Great Siberian Route and often shortened to Transsib, is a large railway system that connects European Russia to the Russian Far East. Spanning a length of over , it is the longest railway ...
, crossing Asia by train, was complete by 1916. Other events include the
Israeli–Palestinian conflict The Israeli–Palestinian conflict is an ongoing military and political conflict about Territory, land and self-determination within the territory of the former Mandatory Palestine. Key aspects of the conflict include the Israeli occupation ...
, two world wars, and the
Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
.


Australian Constitution

In 1901, the
Federation of Australia The Federation of Australia was the process by which the six separate British self-governing colonies of Queensland, New South Wales, Victoria, Tasmania, South Australia (which also governed what is now the Northern Territory), and Wester ...
was the process by which the six separate British
self-governing colonies In the British Empire, a self-governing colony was a colony with responsible government in which the Executive Council was appointed from the majority in the elected Legislative Assembly. This gave the colony nearly full internal autonomy whi ...
of
New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
,
Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...
,
South Australia South Australia (commonly abbreviated as SA) is a States and territories of Australia, state in the southern central part of Australia. With a total land area of , it is the fourth-largest of Australia's states and territories by area, which in ...
,
Tasmania Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ...
, Victoria and
Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...
formed one nation. They kept the systems of government that they had developed as separate colonies but also would have a federal government that was responsible for matters concerning the whole nation. When the
Constitution of Australia The Constitution of Australia (also known as the Commonwealth Constitution) is the fundamental law that governs the political structure of Australia. It is a written constitution, which establishes the country as a Federation of Australia, ...
came into force, the colonies collectively became states of the Commonwealth of Australia.


Revolution and Warlords in China

The last days of the
Qing dynasty The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
were marked with civil unrest, failed reforms and foreign invasions such as the
Boxer Rebellion The Boxer Rebellion, also known as the Boxer Uprising, was an anti-foreign, anti-imperialist, and anti-Christian uprising in North China between 1899 and 1901, towards the end of the Qing dynasty, by the Society of Righteous and Harmonious F ...
. Responding to these civil failures and discontent, the Qing Imperial Court did attempt to reform the government in various ways, as the decision to draft a constitution in 1906, the establishment of provincial legislatures in 1909, and the preparation for a national parliament in 1910. However, many of these measures were opposed by the conservatives of the Qing Court, and many reformers were either imprisoned or executed outright. The failures of the Imperial Court to enact such reforming measures of political liberalization and modernization caused the reformists to steer toward the road of revolution. The assertions of Chinese philosophy began to integrate concepts of Western philosophy, as steps toward modernization. By the time of the
Xinhai Revolution The 1911 Revolution, also known as the Xinhai Revolution or Hsinhai Revolution, ended China's last imperial dynasty, the Qing dynasty, and led to the establishment of the Republic of China (ROC). The revolution was the culmination of a decade ...
in 1911, there were many calls, such as the
May Fourth Movement The May Fourth Movement was a Chinese cultural and anti-imperialist political movement which grew out of student protests in Beijing on May 4, 1919. Students gathered in front of Tiananmen to protest the Chinese government's weak response ...
, to completely abolish the old imperial institutions and practices of China. There were attempts to incorporate democracy,
republicanism Republicanism is a political ideology that encompasses a range of ideas from civic virtue, political participation, harms of corruption, positives of mixed constitution, rule of law, and others. Historically, it emphasizes the idea of self ...
, and
industrialism Industrialisation ( UK) or industrialization ( US) is the period of social and economic change that transforms a human group from an agrarian society into an industrial society. This involves an extensive reorganisation of an economy for th ...
into Chinese philosophy, notably by
Sun Yat-sen Sun Yat-senUsually known as Sun Zhongshan () in Chinese; also known by Names of Sun Yat-sen, several other names. (; 12 November 186612 March 1925) was a Chinese physician, revolutionary, statesman, and political philosopher who founded the Republ ...
at the beginning of the 20th century. In 1912, the Republic of China was established and Sun Yat-sen was inaugurated in
Nanjing Nanjing or Nanking is the capital of Jiangsu, a province in East China. The city, which is located in the southwestern corner of the province, has 11 districts, an administrative area of , and a population of 9,423,400. Situated in the Yang ...
as the first Provisional President. But power in Beijing had already passed to
Yuan Shikai Yuan Shikai (; 16 September 18596 June 1916) was a Chinese general and statesman who served as the second provisional president and the first official president of the Republic of China, head of the Beiyang government from 1912 to 1916 and ...
, who had effective control of the
Beiyang Army The Beiyang Army (), named after the Beiyang region, was a Western-style Imperial Chinese Army established by the Qing dynasty in the early 20th century. It was the centerpiece of a general reconstruction of the Qing military system in the wake ...
, the most powerful military force in China at the time. To prevent civil war and possible foreign intervention from undermining the infant republic, leaders agreed to the army's demand that China be united under a Beijing government. On March 10, in Beijing, Shikai was sworn in as the second Provisional President of the Republic of China. After the early 20th century revolutions, shifting alliances of China's regional warlords waged war for control of the Beijing government. Despite the fact that various warlords gained control of the government in Beijing during the warlord era, this did not constitute a new era of control or governance, because other warlords did not acknowledge the transitory governments in this period and were a law unto themselves. These military-dominated governments were collectively known as the
Beiyang government The Beiyang government was the internationally recognized government of the Republic of China (1912–1949), Republic of China between 1912 and 1928, based in Beijing. It was dominated by the generals of the Beiyang Army, giving it its name. B ...
. The warlord era ended around 1927.


Early 20th century

In 1900, the world's population had approached approximately 1.6 billion. Four years into the 20th century saw the
Russo-Japanese War The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the ...
with the
Battle of Port Arthur The of 8–9 February 1904 marked the commencement of the Russo-Japanese War. It began with a surprise night attack by a squadron of Imperial Japanese Navy, Japanese destroyers on the neutral country, neutral Imperial Russian Navy, Russian fl ...
establishing the
Empire of Japan The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
as a world power. The Russians were in constant pursuit of a
warm water port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manche ...
on the Pacific Ocean, for their navy as well as for maritime trade. The Manchurian Campaign of the
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
was fought against the Japanese over
Manchuria Manchuria is a historical region in northeast Asia encompassing the entirety of present-day northeast China and parts of the modern-day Russian Far East south of the Uda (Khabarovsk Krai), Uda River and the Tukuringra-Dzhagdy Ranges. The exact ...
and
Korea Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically Division of Korea, divided at or near the 38th parallel north, 3 ...
. The major theatres of operations were Southern Manchuria, specifically the area around the
Liaodong Peninsula The Liaodong or Liaotung Peninsula ( zh, s=辽东半岛, t=遼東半島, p=Liáodōng Bàndǎo) is a peninsula in southern Liaoning province in Northeast China, and makes up the southwestern coastal half of the Liaodong region. It is located ...
and
Mukden Shenyang,; ; Mandarin pronunciation: ; formerly known as Fengtian formerly known by its Manchu name Mukden, is a sub-provincial city in China and the provincial capital of Liaoning province. It is the province's most populous city with a p ...
, and the seas around Korea, Japan, and the
Yellow Sea The Yellow Sea, also known as the North Sea, is a marginal sea of the Western Pacific Ocean located between mainland China and the Korean Peninsula, and can be considered the northwestern part of the East China Sea. Names It is one of four ...
. The resulting campaigns, in which the fledgling Japanese military consistently attained victory over the Russian forces arrayed against them, were unexpected by world observers. These victories, as time transpired, would dramatically transform the distribution of power in East Asia, resulting in a reassessment of Japan's recent entry onto the world stage. The embarrassing string of defeats increased Russian popular dissatisfaction with the inefficient and corrupt Tsarist government. The
Russian Revolution of 1905 The Russian Revolution of 1905, also known as the First Russian Revolution, was a revolution in the Russian Empire which began on 22 January 1905 and led to the establishment of a constitutional monarchy under the Russian Constitution of 1906, t ...
was a wave of mass political unrest through vast areas of the
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
. Some of it was directed against the government, while some was undirected. It included
terrorism Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
, worker strikes, peasant unrests, and military mutinies. It led to the establishment of the limited constitutional monarchy, the establishment of
State Duma of the Russian Empire The State Duma, also known as the Imperial Duma, was the lower house of the legislature in the Russian Empire, while the upper house was the State Council (Russian Empire), State Council. It held its meetings in the Tauride Palace in Saint Peters ...
, and the
multi-party system In political science, a multi-party system is a political system where more than two meaningfully-distinct political parties regularly run for office and win elections. Multi-party systems tend to be more common in countries using proportional ...
. In China, the Qing Dynasty was overthrown following the
Xinhai Revolution The 1911 Revolution, also known as the Xinhai Revolution or Hsinhai Revolution, ended China's last imperial dynasty, the Qing dynasty, and led to the establishment of the Republic of China (ROC). The revolution was the culmination of a decade ...
. The Xinhai Revolution began with the
Wuchang uprising The Wuchang Uprising was an armed rebellion against the ruling Qing dynasty that took place in Wuchang (now Wuchang District of Wuhan) in the Chinese province of Hubei on 10 October 1911, beginning the Xinhai Revolution that successfully overthr ...
on October 10, 1911, and ended with the abdication of Emperor Puyi on February 12, 1912. The primary parties to the conflict were the Imperial forces of the
Qing dynasty The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
(1644–1911), and the revolutionary forces of the Chinese Revolutionary Alliance (Tongmenghui).


Edwardian Britain

The
Edwardian era In the United Kingdom, the Edwardian era was a period in the early 20th century that spanned the reign of King Edward VII from 1901 to 1910. It is commonly extended to the start of the First World War in 1914, during the early reign of King Ge ...
in the United Kingdom is the period spanning the reign of
King Edward VII Edward VII (Albert Edward; 9 November 1841 – 6 May 1910) was King of the United Kingdom and the British Dominions, and Emperor of India, from 22 January 1901 until his death in 1910. The second child and eldest son of Queen Victoria and ...
up to the end of the First World War, including the years surrounding the sinking of the RMS ''Titanic''. In the early years of the period, the
Second Boer War The Second Boer War (, , 11 October 189931 May 1902), also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics (the South African Republic and ...
in South Africa split the country into anti- and pro-war factions. The imperial policies of the Conservatives eventually proved unpopular and in the general election of 1906 the Liberals won a huge landslide. The Liberal government was unable to proceed with all of its radical programme without the support of the
House of Lords The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons of the United Kingdom, House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest ext ...
, which was largely Conservative. Conflict between the two Houses of Parliament over the
People's Budget The 1909/1910 People's Budget was a proposal of the Liberal government that introduced unprecedented taxes on the lands and incomes of Britain's wealthy to fund new social welfare programmes, such as non-contributary old age pensions under Ol ...
led to a reduction in the power of the peers in 1910. The general election in January that year returned a
hung parliament A hung parliament is a term used in legislatures primarily under the Westminster system (typically employing Majoritarian representation, majoritarian electoral systems) to describe a situation in which no single political party or pre-existing ...
with the balance of power held by Labour and
Irish Nationalist Irish nationalism is a nationalist political movement which, in its broadest sense, asserts that the people of Ireland should govern Ireland as a sovereign state. Since the mid-19th century, Irish nationalism has largely taken the form of cult ...
members.


World War I

The
causes of World War I The identification of the causes of World War I remains a debated issue. World War I began in the Balkans on July 28, 1914, and hostilities Armistice of 11 November 1918, ended on November 11, 1918, leaving World War I casualties, 17 million de ...
included many factors, including the conflicts and antagonisms of the four decades leading up to the war. The
Triple Entente The Triple Entente (from French meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland. It was built upon th ...
was the name given to the loose alignment between the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
, and
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
after the signing of the
Anglo-Russian Entente The Anglo-Russian Convention of 1907 (), or Convention between the United Kingdom and Russia relating to Persia, Afghanistan, and Tibet (; ), was signed on August 31, 1907, in Saint Petersburg. It ended the two powers' longstanding rivalry in Cen ...
in 1907. The alignment of the three powers, supplemented by various agreements with
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
, the United States, and
Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
, constituted a powerful counterweight to the Triple Alliance of
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
,
Austria-Hungary Austria-Hungary, also referred to as the Austro-Hungarian Empire, the Dual Monarchy or the Habsburg Monarchy, was a multi-national constitutional monarchy in Central Europe#Before World War I, Central Europe between 1867 and 1918. A military ...
, and
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
, the third having concluded an additional secret agreement with France effectively nullifying her Alliance commitments. Militarism, alliances, imperialism, and nationalism played major roles in the conflict. The immediate origins of the war lay in the decisions taken by statesmen and generals during the
July Crisis The July Crisis was a series of interrelated diplomatic and military escalations among the Great power, major powers of Europe in mid-1914, Causes of World War I, which led to the outbreak of World War I. It began on 28 June 1914 when the Serbs ...
of 1914, the spark (or casus belli) for which was the assassination of
Archduke Franz Ferdinand Archduke Franz Ferdinand Carl Ludwig Joseph Maria of Austria (18 December 1863 – 28 June 1914) was the heir presumptive to the throne of Austria-Hungary. His assassination in Sarajevo was the most immediate cause of World War I. Fran ...
of Austria. However, the crisis did not exist in a void; it came after a long series of diplomatic clashes between the Great Powers over European and colonial issues in the decade prior to 1914 which had left tensions high. The diplomatic clashes can be traced to changes in the balance of power in Europe since 1870. An example is the
Baghdad Railway Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the A ...
which was planned to connect the
Ottoman Empire The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Centr ...
cities of
Konya Konya is a major city in central Turkey, on the southwestern edge of the Central Anatolian Plateau, and is the capital of Konya Province. During antiquity and into Seljuk times it was known as Iconium. In 19th-century accounts of the city in En ...
and
Baghdad Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the A ...
with a line through modern-day Turkey, Syria and Iraq. The railway became a source of international disputes during the years immediately preceding World War I. Although it has been argued that they were resolved in 1914 before the war began, it has also been argued that the railroad was a cause of the First World War. Fundamentally the war was sparked by tensions over territory in the
Balkans The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...
. Austria-Hungary competed with Serbia and Russia for territory and influence in the region and they pulled the rest of the great powers into the conflict through their various alliances and treaties. The
Balkan Wars The Balkan Wars were two conflicts that took place in the Balkans, Balkan states in 1912 and 1913. In the First Balkan War, the four Balkan states of Kingdom of Greece (Glücksburg), Greece, Kingdom of Serbia, Serbia, Kingdom of Montenegro, M ...
were two wars in South-eastern Europe in 1912–1913 in the course of which the
Balkan League The League of the Balkans was a quadruple alliance formed by a series of bilateral treaties concluded in 1912 between the Eastern Orthodox kingdoms of Greece, Bulgaria, Serbia and Montenegro, and directed against the Ottoman Empire, which still ...
(Bulgaria, Montenegro, Greece, and Serbia) first captured Ottoman-held remaining part of Thessaly, Macedonia, Epirus, Albania and most of Thrace and then fell out over the division of the spoils, with incorporation of Romania this time. The First World War began in 1914 and lasted to the final
Armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from t ...
in 1918. The Allied Powers, led by the
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
, Russia until March 1918, Japan and the United States after 1917, defeated the
Central Powers The Central Powers, also known as the Central Empires,; ; , ; were one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and the Kingdom of Bulga ...
, led by the German Empire, Austro-Hungarian Empire and the
Ottoman Empire The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Centr ...
. The war caused the disintegration of four empires—the Austro-Hungarian, German, Ottoman, and Russian ones—as well as radical change in the European and West Asian maps. The Allied powers before 1917 are referred to as the
Triple Entente The Triple Entente (from French meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland. It was built upon th ...
, and the Central Powers are referred to as the Triple Alliance. Much of the fighting in World War I took place along the Western Front (World War I), Western Front, within a system of opposing manned trenches and fortifications (separated by a "No man's land") running from the North Sea to the border of Switzerland. On the Eastern Front (World War I), Eastern Front, the vast eastern plains and limited rail network prevented a trench warfare stalemate from developing, although the scale of the conflict was just as large. Hostilities also occurred on and under the sea and—for the first time—from the air. More than 9 million soldiers died on the various battlefields, and nearly that many more in the participating countries' home fronts on account of food shortages and genocide committed under the cover of various civil wars and internal conflicts. Notably, more people died of the worldwide Spanish flu, influenza outbreak at the end of the war and shortly after than died in the hostilities. The unsanitary conditions engendered by the war, severe overcrowding in barracks, wartime propaganda interfering with public health warnings, and migration of so many soldiers around the world helped the outbreak become a pandemic. Ultimately, World War I created a decisive break with the old New World Order (political), world order that had emerged after the Napoleonic Wars, which was modified by the mid-19th century's nationalistic revolutions. The results of World War I would be important factors in the development of World War II approximately 20 years later. More immediate to the time, the partitioning of the Ottoman Empire was a political event that redrew the political boundaries of West Asia. The huge conglomeration of territories and peoples formerly ruled by the Sultan of the Ottoman Empire was divided into several new nations. The partitioning brought the creation of the modern Arab world and the Republic of Turkey. The League of Nations granted France mandates over French Mandate of Syria, Syria and French Mandate of Lebanon, Lebanon and granted the United Kingdom mandates over British Mandate of Mesopotamia, Mesopotamia and Mandate for Palestine, Palestine (which was later divided into two regions: Mandatory Palestine, Palestine and Emirate of Transjordan, Transjordan). Parts of the Ottoman Empire on the Arabian Peninsula became parts of what are today Saudi Arabia and Yemen.


Revolution and war in Russia

The Russian Revolution is the series of revolutions in Russia in 1917, which destroyed the Tsarist autocracy and led to the creation of the Soviet Union. Following the abdication of Nicholas II of Russia, the Russian Provisional Government was established. In October 1917, a October Revolution, ''red'' faction revolution occurred in which the Red Guards (Russia), Red Guard, armed groups of workers and deserting soldiers directed by the Bolshevik Party, seized control of Saint Petersburg (then known as Petrograd) and began an immediate armed takeover of cities and villages throughout the former
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
. Another action in 1917 that is of note was the armistice signed between Russia and the Central Powers at Brest-Litovsk. As a condition for peace, the treaty by the
Central Powers The Central Powers, also known as the Central Empires,; ; , ; were one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and the Kingdom of Bulga ...
conceded huge portions of the former Russian Empire to German Empire, Imperial Germany and the Ottoman Empire, greatly upsetting nationalists and Conservatism, conservatives. The Bolsheviks made peace with the German Empire and the
Central Powers The Central Powers, also known as the Central Empires,; ; , ; were one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and the Kingdom of Bulga ...
, as they had promised the Russian people prior to the Revolution. Vladimir Lenin's decision has been attributed to his sponsorship by the foreign office of Wilhelm II, German Emperor, offered by the latter in hopes that with a revolution, Russia would withdraw from World War I. This suspicion was bolstered by the German Foreign Ministry's sponsorship of Lenin's return to Petrograd (St. Petersburg). The Triple Entente, Western Allies expressed their dismay at the Bolsheviks, upset at: # the withdrawal of Russia from the war effort, # worried about a possible Russo-German alliance, and # galvanized by the prospect of the Bolsheviks making good their threats to assume no responsibility for, and so default on, Imperial Russia's massive External debt, foreign loans. In addition, there was a concern, shared by many Central Powers as well, that the socialist revolutionary ideas would spread to the West. Hence, many of these countries expressed their support for the Whites, including the provision of troops and supplies. Winston Churchill declared that Bolshevism must be "strangled in its cradle". The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed and the Soviet republic (system of government), Soviets under the domination of the Bolshevik party assumed power, first in Petrograd and then in other places. In the wake of the October Revolution, the old Russian Imperial Army had been demobilized; the volunteer-based Red Guard was the Bolsheviks' main military force, augmented by an armed military component of the Cheka, the Bolshevik state security apparatus. There was an instituted mandatory conscription of the rural peasantry into the Red Army. Opposition of rural Russians to Red Army conscription units was overcome by taking hostages and shooting them when necessary to force compliance. Former Tsarist officers were used as "military specialists" (''voenspetsy''), taking their families hostage to ensure loyalty.Williams, Beryl, ''The Russian Revolution 1917–1921'', Blackwell Publishing Ltd. (1987), At the start of the war, three-fourths of the Red Army officer corps was composed of former Tsarist officers. By its end, 83% of all Red Army divisional and corps commanders were ex-Tsarist soldiers. The principal fighting occurred between the Bolshevik Red Army and the forces of the White Movement, White Army. Many foreign armies warred against the Red Army, notably the Allied intervention in the Russian Civil War, Allied Forces, yet many volunteer foreigners fought in both sides of the Russian Civil War. Other nationalist and regional political groups also participated in the war, including the Ukrainian nationalist Green armies, Green Army, the Ukrainian anarchist Revolutionary Insurgent Army of Ukraine, Insurgent Army and Black Guards, and warlords such as Ungern von Sternberg. The most intense fighting took place from 1918 to 1920. Major military operations ended on October 25, 1922, when the Red Army occupied Vladivostok, previously held by the Provisional Priamur Government. The last enclave of the White Forces was the Ayano-Maysky District on the Pacific coast. The majority of the fighting ended in 1920 with the defeat of General Pyotr Wrangel in the Crimea, but a notable resistance in certain areas continued until 1923 (e.g., Kronstadt uprising, Tambov Rebellion, Basmachi Revolt, and the final resistance of the White movement in the Russian Far East, Far East). While the early 1920s was a time of flux for revolutionary Russia and Central Asia, the Union of Soviet Socialist Republics was proclaimed in 1922 as the successor state to the fallen Russian Empire. Revolutionary leader Vladimir Lenin died of natural causes and was succeeded by Joseph Stalin.


The Early Republic of China

In 1917, China declared war on Germany in the hope of recovering its lost province, then under Japanese control. The New Culture Movement occupied the period from 1917 to 1923. Chinese representatives refused to sign the Treaty of Versailles, due to intense pressure from the student protesters and public opinion alike. The
May Fourth Movement The May Fourth Movement was a Chinese cultural and anti-imperialist political movement which grew out of student protests in Beijing on May 4, 1919. Students gathered in front of Tiananmen to protest the Chinese government's weak response ...
helped to rekindle the then-fading cause of republican revolution. In 1917
Sun Yat-sen Sun Yat-senUsually known as Sun Zhongshan () in Chinese; also known by Names of Sun Yat-sen, several other names. (; 12 November 186612 March 1925) was a Chinese physician, revolutionary, statesman, and political philosopher who founded the Republ ...
had become commander-in-chief of a rival military government in Guangzhou in collaboration with southern warlords. Sun's efforts to obtain aid from the Western democracies were ignored, however, and in 1920 he turned to the Soviet Union, which had recently achieved its own revolution. The Soviets sought to befriend the Chinese revolutionists by offering scathing attacks on Western imperialism. But for political expediency, the Soviet leadership initiated a dual policy of support for both Sun and the newly established Chinese Communist Party (CCP). In early 1927, the Kuomintang-CCP rivalry led to a split in the revolutionary ranks. The CCP and the left wing of the Kuomintang had decided to move the seat of the Nationalist government from Guangzhou to Wuhan. But Chiang Kai-shek, whose Northern Expedition was proving successful, set his forces to destroying the Shanghai CCP apparatus and established an anti-Communist government at Nanjing in April 12 Incident, April 1927.


Nanjing period in China

The "Nanjing Decade" of 1928–37 was one of consolidation and accomplishment under the leadership of the Nationalists, with a mixed but generally positive record in the economy, social progress, development of democracy in China, democracy, and cultural creativity. Some of the harsh aspects of foreign concessions and privileges in China were moderated through diplomacy.


The 1920s and the Depression

The interwar period was the period between the end of the First World War and the beginning of the Second World War. This period was marked by turmoil in much of the world, as Europe struggled to recover from the devastation of the First World War. In North America, especially the first half of this period, people experienced considerable prosperity in the Roaring Twenties. The social and societal upheaval known as the Roaring Twenties began in North America and spread to Europe in the aftermath of World War I. The ''Roaring Twenties'', often called the "Jazz Age", saw an exposition of social, artistic, and cultural dynamism. "Normalcy" returned to politics, jazz music blossomed, the flapper redefined modern womanhood, Art Deco peaked. The spirit of the Roaring Twenties was marked by a general feeling of discontinuity associated with modernity, a break with traditions. Everything seemed to be feasible through modern technology. New technologies, especially automobiles, movies and radio proliferated "modernity" to a large part of the population. The 1920s saw the general favor of practicality, in architecture as well as in daily life. The 1920s was further distinguished by several inventions and discoveries, extensive industrial growth and the rise in consumer demand and aspirations, and significant changes in lifestyle. Europe spent these years rebuilding and coming to terms with the vast human cost of the conflict. The occupation of Istanbul and İzmir in the
Ottoman Empire The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Centr ...
by the Allies in the aftermath of World War I prompted the establishment of the Turkish National Movement. The Turkish War of Independence (1919–1923) was waged with the aim of revoking the terms of the Treaty of Sèvres. After the Turkish victory, the Treaty of Lausanne of July 24, 1923, led to the international recognition of the sovereignty of the newly formed "Republic of Turkey" as the successor state of the Ottoman Empire, and the republic was officially proclaimed on October 29, 1923, in Ankara, the country's new capital. The Lausanne Convention stipulated a population exchange between Greece and Turkey, whereby 1.1 million Greeks left Turkey for Greece in exchange for 380,000 Muslims transferred from Greece to Turkey. The economy of the United States became increasingly intertwined with that of Europe. In Germany, the Weimar Republic gave way to episodes of political and economic turmoil, which culminated with the Hyperinflation in the Weimar Republic, German hyperinflation of 1923 and the failed Beer Hall Putsch of that same year. When Germany could no longer afford war payments, Wall Street invested heavily in European debts to keep the European economy afloat as a large consumer market for American mass-produced goods. By the middle of the decade, economic development soared in Europe, and the Roaring Twenties broke out in Germany, Britain and France, the second half of the decade becoming known as the "Golden Twenties". In France and francophone Canada, they were also called the "''années folles''" ("Crazy Years"). Worldwide prosperity changed dramatically with the onset of the Great Depression in 1929. The Wall Street Crash of 1929 served to punctuate the end of the previous era, as ''The Great Depression'' set in. The ''Great Depression'' was a worldwide economic Recession, downturn starting in most places in 1929 and ending at different times in the 1930s or early 1940s for different countries."Great Depression"
, ''Encyclopædia Britannica''
It was the largest and most important Depression (economics), economic depression in the 20th century, and is used in the 21st century as an example of how far the world's economy can fall. The Great Depression had devastating effects in virtually every country, rich or poor. International trade plunged by half to two-thirds, as did personal income, tax revenue, prices and profits. Cities in the Great Depression, Cities all around the world were hit hard, especially those dependent on heavy industry. Construction was virtually halted in many countries. Farming and rural areas suffered as crop prices fell by roughly 60 percent. Facing plummeting demand with few alternate sources of jobs, areas dependent on Primary sector of economic activity, primary sector industries suffered the most. The Great Depression ended at different times in different countries with the Home front during World War II, effect lasting into the next era. America's Great Depression ended in 1941 with America's entry into World War II. The majority of countries set up relief programs, and most underwent some sort of political upheaval, pushing them to the left or right. In some world states, the desperate citizens turned toward nationalist Demagogy, demagogues—the most infamous being Adolf Hitler—setting the stage for the next era of war. The convulsion brought on by the worldwide depression resulted in the rise of Nazism. In Asia, Japan became an ever more assertive power, especially with regards to China.


The League and crises

The interwar period was also marked by a radical change in the international order, away from the balance of power in international relations, balance of power that had dominated pre–World War I Europe. One main institution that was meant to bring stability was the League of Nations, which was created after the First World War with the intention of maintaining world security and peace and encouraging economic growth between member countries. However the League failed to resolve any major crises and by 1938 it was no longer a major player. The League was undermined by the bellicosity of Nazi Germany,
Imperial Japan The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
, the Soviet Union, and Benito Mussolini, Mussolini's Italy, and by the non-participation of the United States. A series of international crises strained the League to its limits, the earliest being the Japanese invasion of Manchuria, invasion of Manchuria by Japan and the Abyssinian crisis of 1935/36 in which Italy invaded Ethiopian Empire, Abyssinia, one of the only free African nations at that time. The League tried to enforce economic sanctions upon Italy, but to no avail. The incident highlighted French and British weakness, exemplified by their reluctance to alienate Italy and lose her as their ally. The limited actions taken by the Western powers pushed Mussolini's Italy towards alliance with Hitler's Germany anyway. The Abyssinian war showed Hitler how weak the League was and encouraged the remilitarization of the Rhineland in flagrant disregard of the Treaty of Versailles. This was the first in a series of provocative acts culminating in the invasion of Poland in September 1939 and the beginning of the Second World War.


Tripartite Pact, World War II and contemporary history (post-1945)

Facing resource scarcity due to a growing population, Japan seized
Manchuria Manchuria is a historical region in northeast Asia encompassing the entirety of present-day northeast China and parts of the modern-day Russian Far East south of the Uda (Khabarovsk Krai), Uda River and the Tukuringra-Dzhagdy Ranges. The exact ...
in September 1931 and put ex-Qing emperor Puyi in charge as head of the puppet state of Manchukuo in 1932. During the Second Sino-Japanese War, Sino-Japanese War (1937–1945), the loss of Manchuria, and its vast potential for military-industrial development, was a blow to the Chinese economy. After 1940, conflicts between the Kuomintang and Communists became more frequent in the Free China (Second Sino-Japanese War), areas not under Japanese control. The Communists expanded their influence wherever opportunities presented themselves through mass organizations, administrative reforms, and the land- and tax-reform measures favoring the peasants—while the Kuomintang attempted to neutralize the spread of Communist influence. The Second Sino-Japanese War had seen tensions rise between Imperial Japan and the United States; events such as the Panay incident and the Nanjing massacre turned American public opinion against Japan. With the occupation of French Indochina in the years of 1940–41, and with the continuing war in China, the United States placed a metal and oil embargo on Japan which were vital to its war effort. The Japanese were faced with the option of either withdrawing from China or seizing and securing new sources of raw materials in the resource-rich, European-controlled colonies of Southeast Asia—specifically British Malaya and the Dutch East Indies (modern-day Indonesia). Although Japan had invaded China in 1937, the conventional view is that the World War II began on September 1, 1939, when Nazi Germany invaded Poland. Within two days the United Kingdom and France declared war on Germany, even though the fighting was confined to Poland. Pursuant to a then-secret provision of its non-aggression Molotov–Ribbentrop Pact, the Soviet Union joined Germany on September 17, 1939, to conquer Poland and divide Eastern Europe. The Allies of World War II, Allies were initially made up of Poland, the United Kingdom, France, Australia, Canada, New Zealand, South Africa, as well as Commonwealth of Nations, British Commonwealth countries which were controlled directly by the UK, such as the British Raj, Indian Empire. All of these countries declared war on Germany in September 1939. Following the lull in fighting, known as the "Phoney War", Germany invaded western Europe in May 1940. Six weeks later, France, in the meantime, attacked by Italy as well, surrendered to Germany, which then tried unsuccessfully to conquer Britain. On September 27, Germany, Italy, and Japan signed a mutual defense agreement, the Tripartite Pact, and were known as the Axis Powers. Nine months later, on June 22, 1941, Germany launched a massive invasion of the Soviet Union, which prompt it to join the Allies. Germany was now engaged in fighting a war on two fronts. This proved to be a mistake – Germany had not successfully carried out the invasion of Britain and the war turned against the Axis. On December 7, 1941, Attack on Pearl Harbor, Japan attacked the United States at Pearl Harbor, bringing it too into the war on the side of the Allies. China also joined the Allies, as did most of the rest of the world. China was in turmoil at the time, and attacked Japanese armies through guerilla-type warfare. By the beginning of 1942, the alignment of the major combatants were as follows: the British Commonwealth, the Soviet Union and the United States were fighting Germany and Italy; China, the British Commonwealth, and the United States were fighting Japan. The United Kingdom, the United States, the Soviet Union and China were referred as a "trusteeship of the powerful" during the
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
and were recognized as the Allied "Big Four" in Declaration by United Nations These four countries were considered as the "Four Policemen" or "Four Sheriffs" of the Allies of World War II, Allies power and primary victors of World War II. Battles raged across all of Europe, in the North Atlantic Ocean, across North Africa, throughout Southeast Asia, throughout China, across the Pacific Ocean and in the air over Japan. Italy surrendered in September 1943 and was split into a northern Germany-occupied puppet state and an Allies-friendly state in the South; Germany surrendered in May 1945. Following the atomic bombings of Hiroshima and Nagasaki, surrender of Japan, Japan surrendered, marking the end of the war on September 2, 1945. It is possible that around 62 million people World War II casualties, died in the war; estimates vary greatly. About 60% of all casualties were civilians, who died as a result of disease, starvation, genocide (in particular, the Holocaust), and aerial bombings. The Soviet Union and China suffered the most casualties. Estimates place deaths in the Soviet Union at around 23 million, while China suffered about 10 million. No country lost a greater portion of its population than Poland: approximately 5.6 million, or 16%, of its pre-war population of 34.8 million died. The Holocaust (which roughly means "burnt whole") was the deliberate and systematic murder of millions of Jews and other "unwanted" during World War II by the Nazi regime in Germany. Several differing views exist regarding whether it was intended to occur from the war's beginning, or if the plans for it came about later. Regardless, persecution of Jews extended well before the war even started, such as in the ''Kristallnacht'' (Night of Broken Glass). The Nazis used propaganda to great effect to stir up anti-Semitic feelings within ordinary Germans. Over the course of the 20th century, the world's per-capita gross domestic product grew by a factor of five, much more than all earlier centuries combined (including the 19th with its Industrial Revolution). Many economists made the case that this understated the magnitude of growth, as many of the goods and services consumed at the end of the 20th century, such as improved medicine (causing world life expectancy to increase by more than two decades) and communications technologies, were not available at any price at its inception. However, the gulf between the world's rich and poor grew wider, and the majority of the global population remained in the poor side of the divide.


Latin America polarization

In Latin America in the 1970s, leftists acquired a significant political influence which prompted the right-wing, ecclesiastical authorities and a large portion of the individual country's upper class to support coups d'état to avoid what they perceived as a communist threat. This was further fueled by Cuban and United States intervention which led to a political polarization. Most South American countries were in some periods ruled by military dictatorships that were supported by the United States of America. In the 1970s, the regimes of the Southern Cone collaborated in Operation Condor killing many leftist dissidents, including some urban guerrillas.


Information Age

The Information Age began in the mid-20th century, characterized by a rapid epochal shift from the traditional industry established by the Industrial Revolution to an economy primarily based upon information technology. The onset of the Information Age can be associated with the development of
transistor A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electric power, power. It is one of the basic building blocks of modern electronics. It is composed of semicondu ...
technology, particularly the
MOSFET upright=1.3, Two power MOSFETs in amperes">A in the ''on'' state, dissipating up to about 100 watt">W and controlling a load of over 2000 W. A matchstick is pictured for scale. In electronics, the metal–oxide–semiconductor field- ...
(metal-oxide-semiconductor field-effect transistor), which became the fundamental building block of
digital electronics Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. It deals with the relationship between Binary number, binary inputs and outputs by passing electrical s ...
and revolutionized modern technology. According to the United Nations Public Administration Network, the Information Age was formed by Market capitalization, capitalizing on Miniaturization, computer microminiaturization advances, which, upon broader usage within society, would lead to Modernization theory, modernized information and to communication processes becoming the driving force of Sociocultural evolution, social evolution.


Notes


References

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