10th Century
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The 10th century was the period from 901 (represented by the
Roman numerals Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, eac ...
CMI) through 1000 (M) in accordance with the
Julian calendar The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts ...
, and the last century of the 1st millennium. In China, the
Song dynasty The Song dynasty ( ) was an Dynasties of China, imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Fiv ...
was established, with most of China reuniting after the fall of the
Tang dynasty The Tang dynasty (, ; zh, c=唐朝), or the Tang Empire, was an Dynasties of China, imperial dynasty of China that ruled from 618 to 907, with an Wu Zhou, interregnum between 690 and 705. It was preceded by the Sui dynasty and followed ...
and the following Five Dynasties and Ten Kingdoms period. The
Muslim World The terms Islamic world and Muslim world commonly refer to the Islamic community, which is also known as the Ummah. This consists of all those who adhere to the religious beliefs, politics, and laws of Islam or to societies in which Islam is ...
experienced a cultural zenith, especially in
al-Andalus Al-Andalus () was the Muslim-ruled area of the Iberian Peninsula. The name refers to the different Muslim states that controlled these territories at various times between 711 and 1492. At its greatest geographical extent, it occupied most o ...
under the
Caliphate of Córdoba A caliphate ( ) is an institution or public office under the leadership of an Islamic steward with Khalifa, the title of caliph (; , ), a person considered a political–religious successor to the Islamic prophet Muhammad and a leader of ...
and in the Samanid Empire under Ismail Samani. The
Abbasid Caliphate The Abbasid Caliphate or Abbasid Empire (; ) was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abd al-Muttalib (566–653 CE), from whom the dynasty takes ...
continued to exist but with reduced central authority. Additionally, there was a cultural flourishing for the
Byzantine Empire The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
, which also reconquered some lost territories, and the
First Bulgarian Empire The First Bulgarian Empire (; was a medieval state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh of Bulgaria, Asparuh, moved south to the northe ...
, as well as the
Holy Roman Empire The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
during the
Ottonian Renaissance The Ottonian Renaissance was a renaissance of Byzantine art, Byzantine and Late Antiquity, Late Antique art in Central Europe, Central and Southern Europe that accompanied the reigns of the first three Holy Roman Emperors of the Ottonian Dynasty, ...
. The historian Lynn White mentions of the period that "to the modern eye, it is very nearly the darkest of the Dark Ages ... if it was dark, it was the darkness of the womb". Caesar Baronius described it as the Iron Century, because it was 'iron in its harshness and in its sterility of goodness', while Lorenzo Valla gave it the similar name "Age of Lead and Iron".


Events

* c. 950: The beginning of the Medieval Warm Period.


Africa

* The Christian
Nubia Nubia (, Nobiin language, Nobiin: , ) is a region along the Nile river encompassing the area between the confluence of the Blue Nile, Blue and White Nile, White Niles (in Khartoum in central Sudan), and the Cataracts of the Nile, first cataract ...
n kingdom reaches its peak of prosperity and military power (see Early history of Sudan). * c. 909: The Fatimid Caliphate arises in Kabylie, Kutama Tribe. * c. 948: The Nri Kingdom in what is now Southeastern
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
starts. * 969: Cairo is founded near Fustat by the Fatimid dynasty. * c. 980:
Al-Azhar University The Al-Azhar University ( ; , , ) is a public university in Cairo, Egypt. Associated with Al-Azhar Al-Sharif in Islamic Cairo, it is Egypt's oldest degree-granting university and is known as one of the most prestigious universities for Islamic ...
is established in
Cairo Cairo ( ; , ) is the Capital city, capital and largest city of Egypt and the Cairo Governorate, being home to more than 10 million people. It is also part of the List of urban agglomerations in Africa, largest urban agglomeration in Africa, L ...
by the Fatimid dynasty. * c. 980: Queen Gudit leads her rebellion against the Aksumite dynasty of Abyssinia.


Americas

* Collapse of the central lowland
Maya civilization The Maya civilization () was a Mesoamerican civilization that existed from antiquity to the early modern period. It is known by its ancient temples and glyphs (script). The Maya script is the most sophisticated and highly developed writin ...
. Post-Classic Maya period begins.
Chichen Itza Chichén Itzá , , often with the emphasis reversed in English to ; from () "at the mouth of the well of the Itza people, Itza people" (often spelled ''Chichen Itza'' in English and traditional Yucatec Maya) was a large Pre-Columbian era, ...
becomes a regional capital on the
Yucatán Peninsula The Yucatán Peninsula ( , ; ) is a large peninsula in southeast Mexico and adjacent portions of Belize and Guatemala. The peninsula extends towards the northeast, separating the Gulf of Mexico to the north and west of the peninsula from the C ...
* Rise of the
Toltec The Toltec culture () was a Pre-Columbian era, pre-Columbian Mesoamerican culture that ruled a state centered in Tula (Mesoamerican site), Tula, Hidalgo (state), Hidalgo, Mexico, during the Epiclassic and the early Post-Classic period of Mesoam ...
s in
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
* Golden age of the Ancestral Puebloans ( Pueblo II Era) * An earthquake hits the Seattle Fault c. 900-930 * The Mississippian culture begins in present-day
Southern United States The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, Dixieland, or simply the South) is List of regions of the United States, census regions defined by the United States Cens ...
* 987: Ah Mekat Tutul Xiu unified Uxmal, Mayapan, and
Chichen Itza Chichén Itzá , , often with the emphasis reversed in English to ; from () "at the mouth of the well of the Itza people, Itza people" (often spelled ''Chichen Itza'' in English and traditional Yucatec Maya) was a large Pre-Columbian era, ...
founding The League of Mayapan.


Asia

*
Buddhist Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...
temple construction commences at
Bagan Bagan ( ; ; formerly Pagan) is an ancient city and a UNESCO World Heritage Site in the Mandalay Region of Myanmar. From the 9th to 13th centuries, the city was the capital of the Pagan Kingdom, the first kingdom that unified the regions that w ...
,
Burma Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and ha ...
* Seafarers and merchants from
Champa Champa (Cham language, Cham: ꨌꩌꨛꨩ, چمڤا; ; 占城 or 占婆) was a collection of independent Chams, Cham Polity, polities that extended across the coast of what is present-day Central Vietnam, central and southern Vietnam from ...
had contacts with Brunei and Ma-i. * 907: Zhu Quanzhong deposes Emperor Ai of Tang and establishes a new Later Liang dynasty. * 907: Sumbing volcano erupts, according to Rukam inscription. * 907: King Balitung creates the Mantyasih inscription containing the list of Mataram kings, moves the capital from Mamratipura to Poh Pitu, and expands Prambanan temple. * 910: Parantaka I of the Chola dynasty drives out the Pandyan from southern
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 ...
into Lanka (now
Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...
), which he also eventually conquers. * 914: The Warmadewa dynasty rules
Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...
.Soekmono, R, Drs., Pengantar Sejarah Kebudayaan Indonesia 2, 2nd ed. Penerbit Kanisius, Yogyakarta, 1973, 5th reprint edition in 1988 p.52 * 919: the first use of
gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal (which is mostly carbon), and potassium nitrate, potassium ni ...
in battle occurs with the Chinese Battle of Langshan Jiang (Wolf Mountain River), where the Wuyue naval fleet under Qian Yuanguan defeats the Wu fleet. Qian had used flamethrowers ignited by gunpowder fuses to burn the Wu fleet. * 928: Ziyarid dynasty is established in northern Iran. * 928: During the reign of King Wawa, the capital of Mataram Kingdom in Kewu Plain is devastated, probably by the massive eruption of Mount Merapi. * 929: Mpu Sindok moves the seat of power of the Mataram Kingdom from Kewu Plain in Central Java to Tamwlang in East Java and establishes Isyana dynasty. The shift is probably as a result of the eruption of Mount Merapi and/or invasion from
Srivijaya Srivijaya (), also spelled Sri Vijaya, was a Hinduism, Hindu-Buddhism, Buddhist thalassocracy, thalassocratic empire based on the island of Sumatra (in modern-day Indonesia) that influenced much of Southeast Asia. Srivijaya was an important ...
. * 930s:
Persia Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
n Shia Buyid dynasty establishes and controls central and western part of
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
as well as most of
Iraq Iraq, officially the Republic of Iraq, is a country in West Asia. It is bordered by Saudi Arabia to Iraq–Saudi Arabia border, the south, Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq border, the east, the Persian Gulf and ...
. * 936:
Goryeo dynasty Goryeo (; ) was a Korean state founded in 918, during a time of national division called the Later Three Kingdoms period, that unified and ruled the Korea, Korean Peninsula until the establishment of Joseon in 1392. Goryeo achieved what has b ...
unifies Later Three Kingdoms of Korea. * 938: Battle of Bạch Đằng with a victory for the Tĩnh Hải Quân forces under the rule of Ngô Quyền put an end to nearly 1,000 years of Chinese imperial domination in
Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...
and marked a new beginning to the Vietnamese history. Ngô Sĩ Liên (1993), Đại Việt sử ký toàn thư, page 53, Peripheral Records vol. 5, "Kỷ Nam Bắc Phân Tranh" * 937: Mpu Sindok moves the capital again from Tamwlang to Watugaluh, both near bank of Brantas River in modern Jombang in East Java. * 960: Zhao Kuangyin establishes
Song dynasty The Song dynasty ( ) was an Dynasties of China, imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Fiv ...
. * 960: Seljuks convert to Islam. * 965: Khazar kingdom is attacked and defeated by Kievan Rus. * 971:
Song dynasty The Song dynasty ( ) was an Dynasties of China, imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Fiv ...
recorded the ancient sovereign state of Ma-i on the list of states conducting trade in the south seas and the government's efforts to regulate and tax this "luxurious" trade. * 975: Ghaznavids dynasty, as the first Turk Sultanate, was established in
Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...
. * 979: Song dynasty reunites China. * 980: Dynastic marriage between princess Mahendradatta of Javanese Isyanas and king Udayana of Balinese Warmadewas. * Coastal cities on the
Malay Peninsula The Malay Peninsula is located in Mainland Southeast Asia. The landmass runs approximately north–south, and at its terminus, it is the southernmost point of the Asian continental mainland. The area contains Peninsular Malaysia, Southern Tha ...
are the seed for the first recorded Malay kingdoms. * 990: King Dharmawangsa of Mataram kingdom launches a naval invasion on Palembang in an unsuccessful attempt to conquer Srivijaya. (to 1006) * 990: Airlangga, son of King Udayana and Queen Mahendradatta was born in Bali. * 996: Dharmawangsa commissioned the translation of the Mahabharata into
Old Javanese Old Javanese or Kawi is an Austronesian languages, Austronesian language and the oldest attested phase of the Javanese language. It was natively spoken in the central and eastern part of Java Island, what is now Central Java, Special Region o ...
.Soekmono, R, Drs., Pengantar Sejarah Kebudayaan Indonesia 2, 2nd ed. Penerbit Kanisius, Yogyakarta, 1973, 5th reprint edition in 1988 p.51 * 999: Samanid dynasty was defeated and conquered by Ghaznavids.


Europe

*
Viking Vikings were seafaring people originally from Scandinavia (present-day Denmark, Norway, and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded, and settled throughout parts of Europe.Roesdahl, pp. 9 ...
groups settle in northern France. * 907: Three German armies led by Luitpold, Margrave of Bavaria, which entered the Hungarian territory in order to expel the Hungarians from the Carpathian Basin, is annihilated by the Hungarian army at the Battle of Pressburg. * Foundation of Cluny, first federated
monastic Monasticism (; ), also called monachism or monkhood, is a religious way of life in which one renounces worldly pursuits to devote oneself fully to spiritual activities. Monastic life plays an important role in many Christian churches, especially ...
order. * Emperor Simeon the Great solidifies the
First Bulgarian Empire The First Bulgarian Empire (; was a medieval state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh of Bulgaria, Asparuh, moved south to the northe ...
as one of the most powerful states in Europe. * Incursions of Magyar (Hungarian) cavalry throughout Western Europe (47 expeditions in
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 ...
,
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 ...
and
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 ...
, 899970). * Collapse of Great Moravia. *
Lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'', native to Sub-Saharan Africa and India. It has a muscular, broad-chested body (biology), body; a short, rounded head; round ears; and a dark, hairy tuft at the ...
s become extinct in Europe by this date, with the last dying in
Caucasus The Caucasus () or Caucasia (), is a region spanning Eastern Europe and Western Asia. It is situated between the Black Sea and the Caspian Sea, comprising parts of Southern Russia, Georgia, Armenia, and Azerbaijan. The Caucasus Mountains, i ...
. * 907: Loire Vikings overrun
Brittany Brittany ( ) is a peninsula, historical country and cultural area in the north-west of modern France, covering the western part of what was known as Armorica in Roman Gaul. It became an Kingdom of Brittany, independent kingdom and then a Duch ...
; Breton court flees to the
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
of Edward the Elder. * 911: The Viking Rollo granted County of Rouen by
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 ...
: official foundation of
Normandy Normandy (; or ) is a geographical and cultural region in northwestern Europe, roughly coextensive with the historical Duchy of Normandy. Normandy comprises Normandy (administrative region), mainland Normandy (a part of France) and insular N ...
. * 917: (20 August 917) the
Bulgarians Bulgarians (, ) are a nation and South Slavs, South Slavic ethnic group native to Bulgaria and its neighbouring region, who share a common Bulgarian ancestry, culture, history and language. They form the majority of the population in Bulgaria, ...
destroyed the Byzantine army in the Battle of Anchialus, one of the bloodiest battles in the Middle Ages. * 927: official recognition of the first independent national Church in Europe, the Bulgarian Patriarchate. * 927:
Kingdom of England The Kingdom of England was a sovereign state on the island of Great Britain from the late 9th century, when it was unified from various Heptarchy, Anglo-Saxon kingdoms, until 1 May 1707, when it united with Kingdom of Scotland, Scotland to f ...
becomes a unified state. * c. 936:
Gorm the Old Gorm the Old (; ; ), also called Gorm the Languid (), was List of Danish monarchs, ruler of Denmark, reigning from to his death or a few years later.Lund, N. (2020), p. 147
becomes the first recognized king of
Denmark Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
, and thus the Danish Monarchy is founded. * 936: Alan II, with support from
Æthelstan Æthelstan or Athelstan (; ; ; ; – 27 October 939) was King of the Anglo-Saxons from 924 to 927 and King of the English from 927 to his death in 939. He was the son of King Edward the Elder and his first wife, Ecgwynn. Modern histori ...
, commences the reconquest of
Brittany Brittany ( ) is a peninsula, historical country and cultural area in the north-west of modern France, covering the western part of what was known as Armorica in Roman Gaul. It became an Kingdom of Brittany, independent kingdom and then a Duch ...
. * 955: The Battle of Lechfeld (10 August 955) sees a decisive victory for Otto I the Great, King of the Germans, over the Hungarian harka Bulcsú and the chieftains Lél (Lehel) and Súr. * 966: Mieszko I, first duke of
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
, baptised a Christian. * 968: Battle of Silistra between Kievan Rus and Bulgars. * 985986: The Norseman Erik the Red begins the colonisation of
Greenland Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenlan ...
. * 925: The medieval Croatian state becomes a unified kingdom under King Tomislav * 988:
Vladimir I Vladimir I may refer to: * Vladimir the Great Vladimir I Sviatoslavich or Volodymyr I Sviatoslavych (; Christian name: ''Basil''; 15 July 1015), given the epithet "the Great", was Prince of Novgorod from 970 and Grand Prince of Kiev from 97 ...
, Prince of
Kievan Rus' Kievan Rus', also known as Kyivan Rus,. * was the first East Slavs, East Slavic state and later an amalgam of principalities in Eastern Europe from the late 9th to the mid-13th century.John Channon & Robert Hudson, ''Penguin Historical At ...
, baptised a Christian *c. 1000: Establishment of the Eastern Settlement and Western Settlement in
Greenland Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenlan ...
. * 1000: Sweyn Forkbeard conquers
Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...
. * Second half of the 10th century: Page with David the Psalmist, from the Paris Psalter, is made. It is now kept at Bibliothéque Nationale,
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
. * Late 10th or early 11th century: The Archangel Michael icon, is made. It is now kept at the Treasury of the Cathedral of Saint Mark,
Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
.


Oceania

* c. 950: Formation of the Tu'i Tonga Empire and of the Tuʻi Tonga dynasty in
Tonga Tonga, officially the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has 171 islands, of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. accordin ...
.


Inventions, discoveries, introductions

* 10th century–12th century: Seated Guaryin
Bodhisattva In Buddhism, a bodhisattva is a person who has attained, or is striving towards, '' bodhi'' ('awakening', 'enlightenment') or Buddhahood. Often, the term specifically refers to a person who forgoes or delays personal nirvana or ''bodhi'' in ...
, is made during the Liao dynasty. It is now kept at The Nelson-Atkins Museum of Art,
Kansas City, Missouri Kansas City, Missouri, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by List of cities in Missouri, population and area. The city lies within Jackson County, Missouri, Jackson, Clay County, Missouri, Clay, and Pl ...
. * Construction begins on the Brihadeeswarar Temple 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 ...
, during the reign of Rajaraja Chola I. * The first pound lock is invented by the Chinese engineer Qiao Weiyo, improving the canal lock system. * Fire arrows are invented by the Chinese. * Earliest known occurrence in
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
of Lost-wax casting. * Three of the '' Four Great Books of Song'' are published (the last one in 1013), which were enormous Chinese
encyclopedia An encyclopedia is a reference work or compendium providing summaries of knowledge, either general or special, in a particular field or discipline. Encyclopedias are divided into article (publishing), articles or entries that are arranged Alp ...
s having millions of written
Chinese character Chinese characters are logographs used to write the Chinese languages and others from regions historically influenced by Chinese culture. Of the four independently invented writing systems accepted by scholars, they represent the only on ...
s each. *
Hops Hops are the flowers (also called seed cones or strobiles) of the hop plant ''Humulus lupulus'', a member of the Cannabaceae family of flowering plants. They are used primarily as a bittering, flavouring, and stability agent in beer, to whic ...
first mentioned in connection with
beer Beer is an alcoholic beverage produced by the brewing and fermentation of starches from cereal grain—most commonly malted barley, although wheat, maize (corn), rice, and oats are also used. The grain is mashed to convert starch in the ...
brewing. * Zhang Sixun of
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
uses for the first time liquid
mercury (element) Mercury is a chemical element; it has Symbol (chemistry), symbol Hg and atomic number 80. It is commonly known as quicksilver. A Heavy metal element, heavy, silvery d-block element, mercury is the only metallic element that is known to be liqui ...
instead of water to power the
escapement An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands. The impulse action transfers energy to t ...
mechanism rotating an armillary sphere, since liquid mercury does not freeze easily like water during winter, and does not rust metal parts.


Notes


Further reading

* Heinrich Fichtenau: ''Living in the Tenth century: Mentalities and Social Orders'' (transl. Patrick J. Geary; Chicago cool London: 1991). * Raita Steyn. (2019). ''Gudit, a Jewish Queen of Aksum? Some Considerations on the Sources and Modern Scholarship, and the Use of Legends.'' Journal for Semitics. 28. 10.25159/2663-6573/6003. {{DEFAULTSORT:10th Century 10th century Centuries