The 9th century was a period from

801 __NOTOC__ Year 801 ( DCCCI) was a common year starting on Friday of the Julian calendar, the 801st year of the Common Era (CE) and Anno Domini (AD) designations, the 801st year of the 1st millennium, the 1st year of the 9th century, and the 2nd ...

(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 ...

DCCCI) through

900 __NOTOC__ Year 900 ( CM) was a leap year starting on Tuesday of the Julian calendar. Events By place Abbasid Caliphate * Spring – Forces under the Transoxianian emir Isma'il ibn Ahmad are victorious at Balkh (Northern Afghan ...

(CM) 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 ...

. The

Carolingian Renaissance The Carolingian Renaissance was the first of three medieval renaissances, a period of cultural activity in the Carolingian Empire. Charlemagne's reign led to an intellectual revival beginning in the 8th century and continuing throughout the 9th ...

and the

Viking raids The Viking Age (about ) was the period during the Middle Ages when Norsemen known as Vikings undertook large-scale raiding, colonising, conquest, and trading throughout Europe and reached North America. The Viking Age applies not only to their ...

occurred within this period. In the Middle East, the

House of Wisdom The House of Wisdom ( ), also known as the Grand Library of Baghdad, was believed to be a major Abbasid Caliphate, Abbasid-era public academy and intellectual center in Baghdad. In popular reference, it acted as one of the world's largest publ ...

was founded in

Abbasid The Abbasid Caliphate or Abbasid Empire (; ) was the third caliphate to succeed the prophets and messengers in Islam, Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abd al-Muttalib (566–653 C ...

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 ...

, attracting many scholars to the city. The field of

algebra Algebra is a branch of mathematics that deals with abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic ope ...

was founded by the Muslim polymath

al-Khwarizmi Muhammad ibn Musa al-Khwarizmi , or simply al-Khwarizmi, was a mathematician active during the Islamic Golden Age, who produced Arabic-language works in mathematics, astronomy, and geography. Around 820, he worked at the House of Wisdom in B ...

. The most famous Islamic scholar

Ahmad ibn Hanbal Ahmad ibn Hanbal (; (164-241 AH; 780 – 855 CE) was an Arab Muslim scholar, jurist, theologian, traditionist, ascetic and eponym of the Hanbali school of Islamic jurisprudence—one of the four major orthodox legal schools of Sunni Islam. T ...

was tortured and

imprisoned Imprisonment or incarceration is the restraint of a person's liberty for any cause whatsoever, whether by authority of the government, or by a person acting without such authority. In the latter case it is considered " false imprisonment". Impri ...

by Abbasid official

Ahmad ibn Abi Du'ad Abu 'Abdallah Ahmad ibn Abi Du'ad al-Iyadi () (776/7–June 854) was an Islamic religious judge (''qadi'') of the mid-ninth century. A proponent of Mu'tazilism, he was appointed as chief judge of the Abbasid Caliphate in 833, and became highly inf ...

during the reign of Abbasid caliph

al-Mu'tasim Abū Isḥāq Muḥammad ibn Hārūn al-Rashīd (; October 796 – 5 January 842), better known by his laqab, regnal name al-Muʿtaṣim biʾllāh (, ), was the eighth Abbasid Caliphate, Abbasid caliph, ruling from 833 until his death in 842. ...

and caliph

al-Wathiq Abū Jaʿfar Hārūn ibn Muḥammad al-Wathiq bi'Llah (; 18 April 81210 August 847), commonly known by his regnal name al-Wathiq bi'Llah (), was an Abbasid caliph who reigned from 842 until his death in 847. Al-Wathiq is described in the so ...

. In Southeast Asia, the height of the Mataram Kingdom happened in this century, while Burma would see the establishment of the major kingdom of

Pagan Paganism (, later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the ...

Tang China 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 ...

started the century with the effective rule under

Emperor Xianzong Emperor Xianzong of Tang (4 March to 1 April 778''Old Book of Tang'', vol. 14. – 14 February 820; r. 805 – 820), personal name Li Chun, né Li Chun (), was an emperor of the Chinese Tang dynasty. He was the eldest son of Emperor Shunzong, ...

and ended the century with the Huang Chao rebellions. In America, the

Maya Maya may refer to: Ethnic groups * Maya peoples, of southern Mexico and northern Central America ** Maya civilization, the historical civilization of the Maya peoples ** Mayan languages, the languages of the Maya peoples * Maya (East Africa), a p ...

experienced widespread political collapse in the central Maya region, resulting in internecine warfare, the abandonment of cities, and a northward shift of population.

West Africa

Southeastern Nigeria

Around the 9th century, the

Igbo people The Igbo people ( , ; also spelled Ibo" and historically also ''Iboe'', ''Ebo'', ''Eboe'', / / ''Eboans'', ''Heebo''; natively ) are an ethnic group found in Nigeria, Cameroon, Gabon, and Equatorial Guinea. Their primary origin is fo ...

of what is now southern

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, ...

developed bronze casts of

human Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing ...

animal Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, ...

s, and

legendary creature A legendary creature is a type of extraordinary or supernatural being that is described in folklore (including myths and legends), and may be featured in historical accounts before modernity, but has not been scientifically shown to exist. In t ...

s. These bronzes, which were used as vessels, amulets, pendants, and sacrificial tools, are among the earliest made bronzes ever found in Nigeria. Most items were part of a burial of a nobleman culture in the northern part of the

Igboland Igbo land ( Standard ) is a cultural and common linguistic region in southeastern Nigeria which is the indigenous homeland of the Igbo people. Geographically, it is divided into two sections, eastern (the larger of the two) and western. Its popu ...

Ghana Empire

The

Ghana (Wagadu) Empire The Ghana Empire (), also known as simply Ghana, Ghanata, or Wagadu (mythology), Wagadu, was an ancient western-Sahelian empire based in the modern-day southeast of Mauritania and western Mali. It is uncertain among historians when Ghana's ruli ...

(before until ) was located in what is now southeastern

Mauritania Mauritania, officially the Islamic Republic of Mauritania, is a sovereign country in Maghreb, Northwest Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to Mauritania–Western Sahara border, the north and northwest, ...

and western

Mali Mali, officially the Republic of Mali, is a landlocked country in West Africa. It is the List of African countries by area, eighth-largest country in Africa, with an area of over . The country is bordered to the north by Algeria, to the east b ...

. It is considered the first of the

Sahelian Kingdoms The Sahelian kingdoms were a series of centralized kingdoms or empires that were centered on the Sahel, the area of grasslands south of the Sahara, from the 8th century to the 19th. The wealth of the states came from controlling the trade routes ...

, which would exist in some form until the early 20th century.

Western Europe

Britain and Ireland

Britain Britain most often refers to: * Great Britain, a large island comprising the countries of England, Scotland and Wales * The United Kingdom of Great Britain and Northern Ireland, a sovereign state in Europe comprising Great Britain and the north-eas ...

experienced a great influx of

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� ...

peoples in the 9th century as the

Viking Age The Viking Age (about ) was the period during the Middle Ages when Norsemen known as Vikings undertook large-scale raiding, colonising, conquest, and trading throughout Europe and reached North America. The Viking Age applies not only to their ...

continued from the previous century. The kingdoms of the

Heptarchy The Heptarchy was the division of Anglo-Saxon England between the sixth and eighth centuries into petty kingdoms, conventionally the seven kingdoms of East Anglia, Essex, Kent, Mercia, Northumbria, Sussex, and Wessex. The term originated wi ...

were gradually conquered by the Danes, who set up Anglo-Saxon puppet rulers in each kingdom. This invasion was achieved by a huge military force known as the

Great Heathen Army The Great Heathen Army, also known as the Viking Great Army,Hadley. "The Winter Camp of the Viking Great Army, AD 872–3, Torksey, Lincolnshire", ''Antiquaries Journal''. 96, pp. 23–67 was a coalition of Scandinavian warriors who invaded ...

, which was supposedly led by

Ivar the Boneless Ivar the Boneless ( ; died ), also known as Ivar Ragnarsson, was a Viking leader who invaded England and Ireland. According to the '' Tale of Ragnar Lodbrok'', he was the son of Aslaug and her husband Ragnar Loðbrok, and was the brother of ...

Halfdan Ragnarsson Halfdan Ragnarsson (; or ''Healfdene''; ; died 877) was a Viking leader and a commander of the Great Heathen Army which invaded the Anglo-Saxon kingdoms of England starting in 865. Halfdan was one of six sons of Ragnar Lodbrok named in Norse ...

, and

Guthrum Guthrum (, – c. 890) was King of East Anglia in the late 9th century. Originally a native of Denmark, he was one of the leaders of the "Great Summer Army" that arrived in Reading during April 871 to join forces with the Great Heathen Army, wh ...

. This Danish army first arrived in Britain in

865 __NOTOC__ Year 865 ( DCCCLXV) was a common year starting on Monday of the Julian calendar. Events By place Europe * King Louis the German divides the East Frankish Kingdom among his three sons. Carloman receives Bavaria (with more l ...

East Anglia East Anglia is an area of the East of England, often defined as including the counties of Norfolk, Suffolk and Cambridgeshire, with parts of Essex sometimes also included. The name derives from the Anglo-Saxon kingdom of the East Angles, ...

. After conquering that kingdom, the army proceeded to capture the city of

York York is a cathedral city in North Yorkshire, England, with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss. It has many historic buildings and other structures, such as a Yor ...

(

Jorvik Scandinavian York or Viking York () is a term used by historians for what is now Yorkshire during the period of Scandinavian domination from late 9th century until it was annexed and integrated into England after the Norman Conquest; in parti ...

) and establish the kingdom of

. The Danes went on to subjugate the kingdom of

Northumbria Northumbria () was an early medieval Heptarchy, kingdom in what is now Northern England and Scottish Lowlands, South Scotland. The name derives from the Old English meaning "the people or province north of the Humber", as opposed to the Sout ...

and to take all but the western portion of

Mercia Mercia (, was one of the principal kingdoms founded at the end of Sub-Roman Britain; the area was settled by Anglo-Saxons in an era called the Heptarchy. It was centred on the River Trent and its tributaries, in a region now known as the Midlan ...

. The remaining kingdom of

Wessex The Kingdom of the West Saxons, also known as the Kingdom of Wessex, was an Anglo-Saxon Heptarchy, kingdom in the south of Great Britain, from around 519 until Alfred the Great declared himself as King of the Anglo-Saxons in 886. The Anglo-Sa ...

was the only kingdom of the

left.

Alfred the Great Alfred the Great ( ; – 26 October 899) was King of the West Saxons from 871 to 886, and King of the Anglo-Saxons from 886 until his death in 899. He was the youngest son of King Æthelwulf and his first wife Osburh, who both died when Alfr ...

managed to maintain his kingdom of

and push back the Viking incursions, relieving the neighbouring kingdoms from the threat of the Danes following his famous victory over them at the

Battle of Ethandun The Battle of Edington or Battle of Ethandun was fought in May 878 between the West Saxon army of King Alfred the Great and the Great Heathen Army led by the Danish warlord Guthrum. The battle took place near Edington in Wiltshire, where Alf ...

878 __NOTOC__ Year 878 ( DCCCLXXVIII) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * March–April – Wilfred the Hairy (ruler of the Catalan counties) with other supporters of Louis the St ...

. Alfred re-established

Anglo-Saxon The Anglo-Saxons, in some contexts simply called Saxons or the English, were a Cultural identity, cultural group who spoke Old English and inhabited much of what is now England and south-eastern Scotland in the Early Middle Ages. They traced t ...

rule over the western half of

, and the

Danelaw The Danelaw (, ; ; ) was the part of History of Anglo-Saxon England, England between the late ninth century and the Norman Conquest under Anglo-Saxon rule in which Danes (tribe), Danish laws applied. The Danelaw originated in the conquest and oc ...

was established which separated

into halves, the eastern half remaining under the control of the Danes.

Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...

was also affected by the Viking expansion across the

North Sea The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium, and France. A sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Se ...

. Extensive raids were carried out all along the coast and eventually, permanent settlements were established, such as that of

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

841 __NOTOC__ Year 841 (Roman numerals, DCCCXLI) was a common year starting on Saturday of the Julian calendar. Events By place Europe * June 25 – Battle of Fontenay (841), Battle of Fontenay: Frankish forces of Emperor Lothair I, a ...

. Particular targets for these raids were the monasteries on the western coast of Ireland, as they provided a rich source for loot. On such raids the

Vikings 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� ...

set up impermanent camps, which were called

longphorts A longphort (Ir. plur. ''longphuirt'') is a term used in Ireland for a Viking ship enclosureConnolly S.J (1998). The Oxford Companion to Irish History. Oxford University Press. p. 580 or shore fortress. The ''longphorts'' were bases for Viking rai ...

by the Irish—this period of Viking raids on the coasts of Ireland has been named the longphort phase after these types of settlements. Ireland in the 9th century was organised into an amalgam of small kingdoms, called tuatha. These kingdoms were sometimes grouped together and ruled by a single, provincial ruler. If such a ruler could establish and maintain authority over a portion of these tuatha, he was sometimes granted the title of

High King A high king is a king who holds a position of seniority over a group of other kings, without the title of emperor. Similar titles include great king and king of kings. The high kings of history usually ruled over lands of cultural unity; thus ...

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

also experienced significant Viking incursions during the 9th century. The Vikings established themselves in coastal regions, usually in northern Scotland, and in the northern islands such as

Orkney Orkney (), also known as the Orkney Islands, is an archipelago off the north coast of mainland Scotland. The plural name the Orkneys is also sometimes used, but locals now consider it outdated. Part of the Northern Isles along with Shetland, ...

and

Shetland Shetland (until 1975 spelled Zetland), also called the Shetland Islands, is an archipelago in Scotland lying between Orkney, the Faroe Islands, and Norway, marking the northernmost region of the United Kingdom. The islands lie about to the ...

. The Viking invasion and settlement in Scotland provided a contributing factor in the collapse of the kingdoms of the

Picts The Picts were a group of peoples in what is now Scotland north of the Firth of Forth, in the Scotland in the early Middle Ages, Early Middle Ages. Where they lived and details of their culture can be gleaned from early medieval texts and Pic ...

, who inhabited most of Scotland at the time. Not only were the Pictish realms either destroyed or severely weakened, the Viking invasion and settlements may have been the reason for the movement of

Kenneth MacAlpin Kenneth MacAlpin (; ; 810 – 13 February 858) or Kenneth I was King of Dál Riada (841–850), and King of the Picts (848–858), of likely Gaelic origin. According to the traditional account, he inherited the throne of Dál Riada from his fa ...

, the king of

Dál Riata Dál Riata or Dál Riada (also Dalriada) () was a Gaels, Gaelic Monarchy, kingdom that encompassed the Inner Hebrides, western seaboard of Scotland and north-eastern Ireland, on each side of the North Channel (Great Britain and Ireland), North ...

at that time. The kingdom of

was located on the western coast of Scotland, and Viking incursions destroyed it after the death of its previous king,

Áed mac Boanta Áed mac Boanta (died 839) is believed to have been a king of Dál Riata. The only reference to Áed in the Irish annals is found in the Annals of Ulster, where it is recorded that " Eóganán mac Óengusa, Bran mac Óengusa, Áed mac Boanta, a ...

in 839, according to the

Annals of Ulster The ''Annals of Ulster'' () are annals of History of Ireland, medieval Ireland. The entries span the years from 431 AD to 1540 AD. The entries up to 1489 AD were compiled in the late 15th century by the scribe Ruaidhrí Ó Luin� ...

. This may have caused the new king, MacAlpin, to move to the east, and conquer the remnants of the Pictish realms. MacAlpin became king of the Picts in 843 and later kings would be titled as the

King of Alba The monarch of Scotland was the head of state of the Kingdom of Scotland. According to tradition, Kenneth I MacAlpin () was the founder and first King of the Kingdom of Scotland (although he never held the title historically, being King of th ...

King of Scots The monarchy of the United Kingdom, commonly referred to as the British monarchy, is the form of government used by the United Kingdom by which a hereditary monarch reigns as the head of state, with their powers regulated by the British cons ...

Art

Art in the 9th century was primarily dedicated to the Gospel and employed as basic tools of liturgy of the Roman Orthodox Church. Thousands of golden art objects were made: Sacred cups, vessels, reliquaries, crucifixes, rosaries, altarpieces, and statues of the Virgin and Child or Saints all kept the flame of western art from dying out. Architecture began to revive to some extent in the West by the 9th century, taking the form of Church facilities of all kinds, and the first castle fortifications since Roman times began to take form in simple "moat and bailey" castles, or simple "strong point" tower structures, with little refinement.

Events

800s 800s may refer to: * The period from 800 to 899, almost synonymous with the 9th century The 9th century was a period from 801 (represented by the Roman numerals DCCCI) through 900 (CM) in accordance with the Julian calendar. The Carolingian ...

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

n kingdoms of Muja (then pagan

Brunei Brunei, officially Brunei Darussalam, is a country in Southeast Asia, situated on the northern coast of the island of Borneo. Apart from its coastline on the South China Sea, it is completely surrounded by the Malaysian state of Sarawak, with ...

/Vijayapura) and Mayd (

Ma-i Mait (also spelled Maidh, Ma'I, Mai, Ma-yi, or Mayi; Baybayin: ; Hanunoo: ; Hokkien ; Mandarin ), was a medieval sovereign state located in what is now the Philippines. Its existence was first documented in 971 in the Song dynasty documents k ...

) waged war against the Chinese Empire. *

802 Year 802 ( DCCCII) was a common year starting on Saturday of the Julian calendar, the 802nd year of the Common Era (CE) and Anno Domini (AD) designations, the 802nd year of the 1st millennium, the 2nd year of the 9th century, and the 3rd yea ...

Jayavarman II Jayavarman II (; – 850, reigned –850) was a Khmer prince who founded and became the ruler of the Khmer Empire (Cambodia) after unifying the Khmer civilization. The Khmer Empire was the dominant civilization in mainland Southeast Asia from t ...

of the

Khmer people The Khmer people (, Romanization of Khmer#UNGEGN, UNGEGN: , Romanization of Khmer#ALA-LC Romanization Tables, ALA-LC: ) are an Austroasiatic ethnic group native to Cambodia. They comprise over 95% of Cambodia's population of 17 million.https ...

Cambodia Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...

founds the

Khmer empire The Khmer Empire was an empire in Southeast Asia, centered on Hydraulic empire, hydraulic cities in what is now northern Cambodia. Known as Kambuja (; ) by its inhabitants, it grew out of the former civilization of Chenla and lasted from 802 t ...

and establishes the Angkorian dynasty. *

803 __NOTOC__ Year 803 ( DCCCIII) was a common year starting on Sunday of the Julian calendar. Events By place Byzantine Empire * Emperors Nikephoros I and Charlemagne settle their imperial boundaries in the Adriatic Sea, and sign the Pa ...

: Construction on the

Leshan Giant Buddha The Leshan Giant Buddha ( zh, t=樂山大佛) is a tall stone statue, built between 713 and 803 (during the Tang dynasty). It is carved out of a cliff face of Cretaceous red bed sandstones that lies at the confluence of the Minjiang River (Sic ...

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 ...

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 ...

is complete, after 90 years of rock-carving on a massive cliff-side. *

805 __NOTOC__ Year 805 ( DCCCV) was a common year starting on Wednesday of the Julian calendar, the 805th year of the Common Era (CE) and Anno Domini (AD) designations, the 805th year of the 1st millennium, the 5th year of the 9th century, and the ...

– 820:

was under the rule of

Emperor Xianzong of Tang Emperor Xianzong of Tang (4 March to 1 April 778''Old Book of Tang'', vol. 14. – 14 February 820; r. 805 – 820), personal name Li Chun, né Li Chun (), was an emperor of the Chinese Tang dynasty. He was the eldest son of Emperor Shunzong, ...

. *

809 __NOTOC__ Year 809 ( DCCCIX) was a common year starting on Monday of the Julian calendar, the 809th year of the Common Era (CE) and Anno Domini (AD) designations, the 809th year of the 1st millennium, the 9th year of the 9th century, and the ...

– 815: War between 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 ...

and

Bulgaria Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...

. * 811:

Battle of Pliska The Battle of Pliska or Battle of Vărbitsa Pass was a series of battles between troops, gathered from all parts of the Byzantine Empire, led by the Emperor Nicephorus I, and the First Bulgarian Empire, governed by Khan Krum. The Byzantines pl ...

fought between a Byzantine force led by emperor

Nicephorus I Nikephoros I (; 750 – 26 July 811), also known as Nicephorus I, was Byzantine emperor from 802 to 811. He was General Logothete (finance minister) under Empress Irene, but later overthrew her to seize the throne for himself. Prior to becomi ...

and a Bulgarian army commanded by Khan

Krum Krum (, ), often referred to as Krum the Fearsome () was the Khan of Bulgaria from sometime between 796 and 803 until his death in 814. During his reign the Bulgarian territory doubled in size, spreading from the middle Danube to the Dnieper a ...

. Byzantines are defeated in a series of engagements, culminating with the death of

. *

813 Events By place Byzantine Empire * June 22 – Battle of Versinikia: The Bulgars, led by Krum, ruler ('' khan'') of the Bulgarian Empire, defeat Emperor Michael I near Edirne (modern Turkey). The Byzantine army (26,000 men) is ...

: Byzantines are heavily defeated by the Bulgars at Versinikia. * c.

– c.

915 Year 915 ( CMXV) was a common year starting on Sunday of the Julian calendar. Events By place Europe * Summer – Battle of Garigliano: The Christian League, personally led by Pope John X, lays siege to Garigliano (a fortified Ar ...

: Period of serious Arab naval raids on shores of Tyrrhenian and Adriatic seas. *

814 __NOTOC__ Year 814 ( DCCCXIV) was a common year starting on Sunday of the Julian calendar, the 814th year of the Common Era (CE) and Anno Domini (AD) designations, the 814th year of the 1st millennium, the 14th year of the 9th century, and t ...

Charlemagne Charlemagne ( ; 2 April 748 – 28 January 814) was List of Frankish kings, King of the Franks from 768, List of kings of the Lombards, King of the Lombards from 774, and Holy Roman Emperor, Emperor of what is now known as the Carolingian ...

dies in the city of

Aachen Aachen is the List of cities in North Rhine-Westphalia by population, 13th-largest city in North Rhine-Westphalia and the List of cities in Germany by population, 27th-largest city of Germany, with around 261,000 inhabitants. Aachen is locat ...

. * 815: A 30-year peace agreement is signed between Bulgaria and the Byzantine Empire. * 820:

Muḥammad ibn Mūsā al-Khwārizmī Muhammad ibn Musa al-Khwarizmi , or simply al-Khwarizmi, was a mathematician active during the Islamic Golden Age, who produced Arabic-language works in mathematics, astronomy, and geography. Around 820, he worked at the House of Wisdom in B ...

writes his treatise on Algebra

The Compendious Book on Calculation by Completion and Balancing ''The Concise Book of Calculation by Restoration and Balancing'' (, ;} or ), commonly abbreviated ''Al-Jabr'' or ''Algebra'' (Arabic: ), is an Arabic mathematics, Arabic mathematical treatise on algebra written in Baghdad around 820 by the Pers ...

. * 824:

Han Yu Han Yu (; 76825 December 824), courtesy name Tuizhi (), and commonly known by his posthumous name Han Wengong (韓文公), was an essayist, Confucian scholar, poet, and government official during the Tang dynasty who significantly influenced t ...

dies. *

825 __NOTOC__ Year 825 (Roman numerals, DCCCXXV) was a common year starting on Sunday of the Julian calendar. Events By place India * A group of Persio-Assyrian adherents of the Church of the East, under the leadership of two Persian bis ...

Battle of Ellandun The Battle of Ellendun or Battle of Wroughton was fought between Ecgberht of Wessex and Beornwulf of Mercia in September 825. Sir Frank Stenton described it as "one of the most decisive battles of English history". It effectively established ...

: King Egbert of Wessex defeats Mercia and establishes the kingdom of Wessex as the supreme Kingdom in England. *

Borobudur Borobudur, also transcribed Barabudur (, ), is a 9th-century Mahayana Buddhist temple in Magelang Regency, near the city of Magelang and the town of Muntilan, in Central Java, Indonesia. Constructed of gray andesite-like stone, the temple consi ...

is completed during the reign of

Samaratungga Samaratungga was the head of the Sailendra dynasty which ruled the Mataram Kingdom and Srivijaya in the 8th and 9th centuries. He was the successor of King Indra, and his name was mentioned in the Karangtengah inscription dated 824 CE as the c ...

.Dumarçay (1991). COLLECTIE TROPENMUSEUM Temperaschilderij voorstellende de Borobudur als bedevaartsoord TMnr 75-2

827 __FORCETOC__ Year 827 ( DCCCXXVII) was a common year starting on Tuesday of the Julian calendar. Events By place Byzantine Empire * June 14 – Euphemius, exiled Byzantine admiral, asks for the help of North African Arabs, to ret ...

–

902 __NOTOC__ Year 902 (Roman numerals, CMII) was a common year starting on Friday of the Julian calendar. Events By place Europe * Spring – Adalbert II, Margrave of Tuscany, Adalbert II, margrave of March of Tuscany, Tuscany, revol ...

Aghlabid The Aghlabid dynasty () was an Arab dynasty centered in Ifriqiya (roughly present-day Tunisia) from 800 to 909 that conquered parts of Sicily, Southern Italy, and possibly Sardinia, nominally as vassals of the Abbasid Caliphate. The Aghlabids ...

s established emirate (province) in

Sicily Sicily (Italian language, Italian and ), officially the Sicilian Region (), is an island in the central Mediterranean Sea, south of the Italian Peninsula in continental Europe and is one of the 20 regions of Italy, regions of Italy. With 4. ...

and subsequently raids Southern Italy. *

830 __NOTOC__ Year 830 ( DCCCXXX) was a common year starting on Saturday of the Julian calendar. Events By place Britain * King Wiglaf of Mercia regains control from Wessex, and returns to the throne.Swanton, ''Anglo-Saxon Chronicle'', pp. ...

: The

is established. *

: The

, a library and translation institute established in

al-Ma'mun Abū al-ʿAbbās Abd Allāh ibn Hārūn al-Maʾmūn (; 14 September 786 – 9 August 833), better known by his regnal name al-Ma'mun (), was the seventh Abbasid caliph, who reigned from 813 until his death in 833. His leadership was marked by t ...

caliph 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 ...

, to transfer the knowledge of Greeks, Persians, Indians, etc. to the Muslim world.

, a book of

, is also written there by

Al-Khwarizmi Muhammad ibn Musa al-Khwarizmi , or simply al-Khwarizmi, was a mathematician active during the Islamic Golden Age, who produced Arabic-language works in mathematics, astronomy, and geography. Around 820, he worked at the House of Wisdom in B ...

. * 835:

Sweet Dew Incident The Sweet Dew incident or Ganlu incident () was a failed coup on December 14, 835Academia Sinicabr>Chinese-Western Calendar Converter.''Zizhi Tongjian'', vol. 245. by Emperor Wenzong of the Chinese Tang dynasty to seize power from the eunu ...

occurs. Emperor Wenzong of the

conspires to kill the powerful

eunuch A eunuch ( , ) is a male who has been castration, castrated. Throughout history, castration often served a specific social function. The earliest records for intentional castration to produce eunuchs are from the Sumerian city of Lagash in the 2 ...

s of the Tang court, but the plot is foiled. *

839 __NOTOC__ Year 839 ( DCCCXXXIX) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * Prince Sicard of Benevento is assassinated by a conspiracy among the nobility. He is succeeded by Radelchis I, c ...

–

842 __NOTOC__ Year 842 ( DCCCXLII) was a common year starting on Sunday of the Julian calendar, the 842nd year of the Common Era (CE) and Anno Domini (AD) designations, the 842nd year of the 1st millennium, the 42nd year of the 9th century, and t ...

: Vlastimir defeats Presian. *

840 __NOTOC__ Year 840 (Roman numerals, DCCCXL) was a leap year starting on Thursday in the Julian calendar, the 840th year of the Common Era (CE) and Anno Domini (AD) designations, the 840th year of the 1st millennium, the 40th year of the 9th cen ...

: Death of

Louis the Pious Louis the Pious (; ; ; 16 April 778 – 20 June 840), also called the Fair and the Debonaire, was King of the Franks and Holy Roman Emperor, co-emperor with his father, Charlemagne, from 813. He was also King of Aquitaine from 781. As the only ...

. *

is founded on the east coast of Ireland by the

. *

: Samaale becomes chief of the Hashiyah clan and launches the conquest of Somalia. This paves the way for Hashiyic colonisation of the Peninsular, displacing the native Cushitic peoples of Somalia *

843 __NOTOC__ Year 843 ( DCCCXLIII) was a common year starting on Monday of the Julian calendar. Events By place Europe *May 24 – Battle of Blain: Breton forces under Erispoe, count of Vannes, defeat the Franks led by Renaud d'He ...

: The Carolingian Empire is at its height in territory and area. The three sons of

reach an agreement known as the

Treaty of Verdun The Treaty of Verdun (; ), agreed to on 10 August 843, ended the Carolingian civil war and divided the Carolingian Empire between Lothair I, Louis the German, Louis II and Charles the Bald, Charles II, the surviving sons of the emperor Louis the ...

and split the

Carolingian empire The Carolingian Empire (800–887) was a Franks, Frankish-dominated empire in Western and Central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as List of Frankish kings, kings of the Franks since ...

into three divisions;

East Francia East Francia (Latin: ) or the Kingdom of the East Franks () was a successor state of Charlemagne's empire created in 843 and ruled by the Carolingian dynasty until 911. It was established through the Treaty of Verdun (843) which divided the for ...

was given to

Louis the German Louis the German (German language, German: ''Ludwig der Deutsche''; c. 806/810 – 28 August 876), also known as Louis II of Germany (German language, German: ''Ludwig II. von Deutschland''), was the first king of East Francia, and ruled from 8 ...

West Francia In medieval historiography, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () constitutes the initial stage of the Kingdom of France and extends from the year 843, from the Treaty of Verdun, to 987, the beginning of the Capet ...

Charles the Bald Charles the Bald (; 13 June 823 – 6 October 877), also known as CharlesII, was a 9th-century king of West Francia (843–877), King of Italy (875–877) and emperor of the Carolingian Empire (875–877). After a series of civil wars during t ...

and

Middle Francia Middle Francia () was a short-lived Frankish kingdom which was created in 843 by the Treaty of Verdun after an intermittent civil war between the grandsons of Charlemagne resulted in division of the united empire. Middle Francia was allocated ...

Lothair I Lothair I (9th. C. Frankish: ''Ludher'' and Medieval Latin: ''Lodharius''; Dutch and Medieval Latin: ''Lotharius''; German: ''Lothar''; French: ''Lothaire''; Italian: ''Lotario''; 795 – 29 September 855) was a 9th-century emperor of the ...

. * 844: The first Viking raid in Iberia * 845:

Buddhism 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 ...

is persecuted and banned in China. * 846– 859:

Emperor Xuānzong of Tang Emperor Xuanzong of Tang (27 July 810 – 7 September 859) was an emperor of China's Tang dynasty, reigning from 25 April 846 until his death. Personally named Li Yi, later renamed Li Chen (), and known before his reign as the Prince of Guang, h ...

reigned. He was considered the last capable emperor of the

. * 846: 11,000

Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens ''Saracen'' ( ) was a term used both in Greek and Latin writings between the 5th and 15th centuries to refer to the people who lived in and near what was designated by the Rom ...

Arab squadrons from Africa, with 500 horses, desecrate

Christian A Christian () is a person who follows or adheres to Christianity, a Monotheism, monotheistic Abrahamic religion based on the life and teachings of Jesus in Christianity, Jesus Christ. Christians form the largest religious community in the wo ...

shrines in

Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...

, including the tombs and basilicas of Sts. Peter and Paul. *

848 __NOTOC__ Year 848 ( DCCCXLVIII) was a leap year starting on Sunday of the Julian calendar. Events By place Europe * Summer – Bordeaux, capital of Aquitaine, falls into the hands of Viking raiders. King Charles the Bald sends a ...

–

852 __NOTOC__ Year 852 (Roman numerals, DCCCLII) was a leap year starting on Friday of the Julian calendar. Events By place Europe * March 4 – Trpimir I of Croatia, Trpimir I, duke (''Knyaz, knez'') of Duchy of Croatia, Croatia, an ...

: The west bank of the

Tiber The Tiber ( ; ; ) is the List of rivers of Italy, third-longest river in Italy and the longest in Central Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing through Tuscany, Umbria, and Lazio, where it is joined by the R ...

is annexed into the city of

. A

defensive wall A defensive wall is a fortification usually used to protect a city, town or other settlement from potential aggressors. The walls can range from simple palisades or earthworks to extensive military fortifications such as curtain walls with t ...

, commissioned by

Pope Leo IV Pope Leo IV (died 17 July 855) was the bishop of Rome and ruler of the Papal States from 10 April 847 to his death in 855. He is remembered for repairing Roman churches that had been damaged during the Arab raid against Rome, and for building the ...

, is built around what came to be called the

Leonine City The Leonine City (Latin: ''Civitas Leonina'') is the part of the city of Rome which, during the Middle Ages, was enclosed with the Leonine Wall, built by order of Pope Leo IV in the 9th century. This area was located on the opposite side of the T ...

as a defensive response to the

desecration of

in 846. *

850 __NOTOC__ Year 850 ( DCCCL) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * February 1 – King Ramiro I dies in his palace at Santa María del Naranco (near Oviedo), after an 8-year reign ...

– 875: The first Norse settlers arrive on

Iceland Iceland is a Nordic countries, Nordic island country between the Atlantic Ocean, North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is culturally and politically linked with Europe and is the regi ...

. *

850s The 850s decade ran from January 1, 850, to December 31, 859. Significant people * Al-Mutawakkil * Charles the Bald * Louis the German * Lothar * Ethelwulf of Wessex * Bardas * Kenneth I of Scotland * Halfdan the Black Halfdan the Black ( ...

: The

Muslim Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...

Berber Berber or Berbers may refer to: Ethnic group * Berbers, an ethnic group native to Northern Africa * Berber languages, a family of Afro-Asiatic languages Places * Berber, Sudan, a town on the Nile People with the surname * Ady Berber (1913–196 ...

dynasty

Banu Isam The Banu Isam were a Berber Muslim dynasty that ruled Ceuta, present-day Spain, for four generations. The town had been destroyed in a rebellion, and was lying waste; sometime in the middle of the 9th century, Mâjakas, chief of the Berber Majkasa ...

is founded in

Ceuta Ceuta (, , ; ) is an Autonomous communities of Spain#Autonomous cities, autonomous city of Spain on the North African coast. Bordered by Morocco, it lies along the boundary between the Mediterranean Sea and the Atlantic Ocean. Ceuta is one of th ...

. *

851 __NOTOC__ Year 851 ( DCCCLI) was a common year starting on Thursday of the Julian calendar. Events By place Asia * Bagrat II Bagratuni, Armenian prince and leader of a rebellion against the Abbasid Caliphate, is captured by the Abbasi ...

: The Arab merchant

Sulaiman al-Tajir Sulaymān al-Tājir () was a 9th-century Muslim merchant, traveler and writer initially from Siraf in modern-day Iran. He traveled to India and China and wrote an account of his voyages around AD 850, often associated with a related travelo ...

visits the Chinese

seaport 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, Manc ...

Guangzhou Guangzhou, Chinese postal romanization, previously romanized as Canton or Kwangchow, is the Capital city, capital and largest city of Guangdong Provinces of China, province in South China, southern China. Located on the Pearl River about nor ...

in southern China, and observes the manufacturing of

porcelain Porcelain (), also called china, is a ceramic material made by heating Industrial mineral, raw materials, generally including kaolinite, in a kiln to temperatures between . The greater strength and translucence of porcelain, relative to oth ...

, the Islamic

mosque A mosque ( ), also called a masjid ( ), is a place of worship for Muslims. The term usually refers to a covered building, but can be any place where Salah, Islamic prayers are performed; such as an outdoor courtyard. Originally, mosques were si ...

built at Guangzhou, the

granary A granary, also known as a grain house and historically as a granarium in Latin, is a post-harvest storage building primarily for grains or seeds. Granaries are typically built above the ground to prevent spoilage and protect the stored grains o ...

system of the city, and how its

municipal A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the gov ...

administration functioned. *

856 __NOTOC__ Year 856 ( DCCCLVI) was a leap year starting on Wednesday of the Julian calendar. Events By place Byzantine Empire * March 15 – Emperor Michael III overthrows the regency of his mother Theodora. He appoints his uncle ...

Prambanan Prambanan (, , Javanese script, Hanacaraka: ꦫꦫꦗꦺꦴꦁꦒꦿꦁ) is a 9th-century Hindu temple, Hindu Candi of Indonesia, temple compound in the Special Region of Yogyakarta, in southern Java, Indonesia, dedicated to the Trimurti, Trimūr ...

is completed. Miksic (1997) According to the Shivagrha inscription,

Rakai Pikatan Salaḍū, Lord of Pikatan (reigned 847–855) was a king of the Mataram Kingdom in Central Java who built the Prambanan temple, dedicated to Shiva. He is commonly referred to as ''Rakai Pikatan'', which is a title meaning "Lord of Pikatan". His p ...

— the husband of

Pramodhawardhani Pramodhawardhani (also known as Çrī Kahulunnan or Çrī Sanjiwana) was the queen consort of King Rakai Pikatan (r. 838-850) of Mataram Kingdom in 9th century Central Java. She was the daughter of Sailendran king Samaratungga (r. 812—833). ...

— defeated

Balaputra Balaputradewa was the maharaja of Srivijaya in the 9th century CE as well as the former head of the Sailendra dynasty. He was the youngest son of the preceding Sailendran maharaja, Samaratunga, through marriage with Dewi Tara who was in turn the ...

. * 859: Muslims establish the

University of Al Karaouine The University of al-Qarawiyyin (), also written Al-Karaouine or Al Quaraouiyine, is a university located in Fez, Morocco. It was founded as a mosque by Fatima al-Fihri in 857–859 and subsequently became one of the leading spiritual and educat ...

as a

madrasa Madrasa (, also , ; Arabic: مدرسة , ), sometimes Romanization of Arabic, romanized as madrasah or madrassa, is the Arabic word for any Educational institution, type of educational institution, secular or religious (of any religion), whet ...

Fez, Morocco Fez () or Fes (; ) is a city in northern inland Morocco and the capital of the Fez-Meknes, Fez-Meknes administrative region. It is one of the List of cities in Morocco, largest cities in Morocco, with a population of 1.256 million, according to ...

. * 860:

, the maharaja of Suvarnadvipa and the ruler of Srivijaya, constructs the Buddhist temple and monastery in

Nalanda Nalanda (International Alphabet of Sanskrit Transliteration, IAST: , ) was a renowned Buddhism, Buddhist ''mahavihara'' (great monastery) in medieval Magadha (Mahajanapada), Magadha (modern-day Bihar), eastern India. Widely considered to be am ...

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 ...

, on the land given by King Devapaladeva. of Pala in Benggala, according to the

Nalanda inscription The Nalanda Copper-plate of Devapaladeva is an ancient Buddhist inscription located in Nalanda, within the present day Bihar state of Northeastern India. It has been dated to 860 CE. The inscription talks about king Devapaladeva of Bengala (Pal ...

. *

861 __NOTOC__ Year 861 ( DCCCLXI) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * March – Robert the Strong is appointed margrave of Neustria by King Charles the Bald. He re-establishes the ...

: Assassination of

caliph

al-Mutawakkil Ja'far ibn al-Mu'tasim, Muḥammad ibn Harun al-Rashid, Hārūn al-Mutawakkil ʿalā Allāh (); March 82211 December 861, commonly known by his laqab, regnal name al-Mutawwakil ala Allah (), was the tenth Abbasid Caliphate, Abbasid caliph, rul ...

(r. 847–861) and decline of 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 ...

* 862: The beginning of the

Rurik dynasty The Rurik dynasty, also known as the Rurikid or Riurikid dynasty, as well as simply Rurikids or Riurikids, was a noble lineage allegedly founded by the Varangian prince Rurik, who, according to tradition, established himself at Novgorod in the ...

Rus' Rus or RUS may refer to: People * East Slavic historical peoples (). See Names of Rus', Russia and Ruthenia ** Rus' people, the people of Rus' ** Rus, a legendary eponymous ancestor, see Lech, Czech and Rus * Rus (surname), a surname found in Ro ...

. *

863 __NOTOC__ Year 863 ( DCCCLXIII) was a common year starting on Friday of the Julian calendar. Events By place Byzantine Empire * September 3 – Battle of Lalakaon: A Byzantine army confronts an invasion by Muslim forces, led by Um ...

: The Chinese author

Duan Chengshi Duan Chengshi () (died 863) was a Chinese poet of the Tang dynasty. He was born to a wealthy family in present-day Zibo, Shandong. A descendant of the early Tang official Duan Zhixuan (, ''Duàn Zhìxuán'') (-642), and the son of Duan Wenchang (, ...

describes the

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 ...

ivory trade The ivory trade is the commercial, often illegal trade in the ivory tusks of the hippopotamus, walrus, narwhal, black and white rhinos, mammoth, and most commonly, African elephant, African and Asian elephants. Ivory has been traded for hundred ...

, and

ambergris Ambergris ( or ; ; ), ''ambergrease'', or grey amber is a solid, waxy, flammable substance of a dull grey or blackish colour produced in the digestive system of sperm whales. Freshly produced ambergris has a marine, fecal odor. It acquires a sw ...

trade of

Somalia Somalia, officially the Federal Republic of Somalia, is the easternmost country in continental Africa. The country is located in the Horn of Africa and is bordered by Ethiopia to the west, Djibouti to the northwest, Kenya to the southwest, th ...

East Africa East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...

. * 862: The

Bagratuni dynasty The Bagratuni or Bagratid dynasty (, ) was an Armenian royal dynasty which ruled the medieval Kingdom of Armenia from until 1045. Originating as vassals of the Kingdom of Armenia of antiquity, they rose to become the most prominent Armenian n ...

Medieval Armenia Medieval Armenia refers to the history of Armenia during the Middle Ages. It follows Ancient Armenia and covers a period of approximately eight centuries, beginning with the Muslim conquest of Armenia in the 7th century. Key events during this ...

begins with Ashot I. *

–

879 __NOTOC__ Year 879 ( DCCCLXXIX) was a common year starting on Thursday of the Julian calendar. Events By place Europe * April 10 – King Louis the Stammerer dies at Compiègne, after a reign of 18 months. He is succeeded by hi ...

: Period of schism between Eastern and Western churches. *

864 __NOTOC__ Year 864 ( DCCCLXIV) was a leap year starting on Saturday of the Julian calendar. Events By place Europe * Spring – Emperor Louis II (the Younger) marches with a Frankish army against Rome. While en route to the papa ...

Christianization of Bulgaria The Christianization of Bulgaria was the process by which 9th-century medieval Bulgaria converted to Christianity. It reflected the need of unity within the religiously divided Bulgarian state as well as the need for equal acceptance on the in ...

under

Boris I Boris I (also ''Bogoris''), venerated as Saint Boris I (Mihail) the Baptizer (, ; died 2 May 907), was the ruler (knyaz) of the First Bulgarian Empire from 852 to 889. Despite a number of military setbacks, the reign of Boris I was marked wit ...

* 867: Onward revival of 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 ...

under the

Macedonian dynasty The Macedonian dynasty () Byzantine Empire under the Macedonian dynasty, ruled the Byzantine Empire from 867 to 1056, following the Byzantium under the Amorian dynasty, Amorian dynasty. During this period, the Byzantine state reached its greates ...

. * 868:

Ahmad ibn Tulun Ahmad ibn Tulun (; c. 20 September 835 – 10 May 884) was the founder of the Tulunid dynasty that ruled Egypt in the Middle Ages, Egypt and Bilad al-Sham, Syria between 868 and 905. Originally a Turkic peoples, Turkic slave-soldier, in 868 Ibn ...

breaks away from the

and establishes the independent

Tulunid The Tulunid State, also known as the Tulunid Emirate or The State of Banu Tulun, and popularly referred to as the Tulunids () was a Mamluk dynasty of Turkic origin who was the first independent dynasty to rule Egypt, as well as much of Syria, s ...

dynasty. *

869 __NOTOC__ Year 869 ( DCCCLXIX) was a common year starting on Saturday of the Julian calendar. Events By place Byzantine Empire * Summer – Emperor Basil I allies with the Frankish emperor Louis II against the Saracens. He sends ...

: An earthquake and tsunami struck

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 ...

's Sanriku coast, killing 1,000 people. *

–

883 __NOTOC__ Year 883 ( DCCCLXXXIII) was a common year starting on Tuesday of the Julian calendar. Events By place Europe * Spring – Viking raiders ravage Flanders, and sack the abbey at Saint-Quentin. King Carloman II blocks thei ...

Zanj Rebellion The Zanj Rebellion ( ) was a major revolt against the Abbasid Caliphate, which took place from 869 until 883. Begun near the city of Basra in present-day southern Iraq and led by one Ali ibn Muhammad, the insurrection involved both enslaved and ...

against the

Abbasids 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 i ...

870 __NOTOC__ Year 870 (Roman numerals, DCCCLXX) was a common year starting on Sunday of the Julian calendar, the 870th year of the Common Era (CE) and Anno Domini (AD) designations, the 870th year of the 1st millennium, the 70th year of the 9th ce ...

Christianization of the Serbs The Serbian Orthodox Church ( sr-Cyrl-Latn, Српска православна црква, Srpska pravoslavna crkva) is one of the autocephalous (ecclesiastically independent) Eastern Orthodoxy, Eastern Orthodox Eastern Orthodox Church#Constit ...

. *

Prague Castle Prague Castle (; ) is a castle complex in Prague, Czech Republic serving as the official residence and workplace of the president of the Czech Republic. Built in the 9th century, the castle has long served as the seat of power for List of rulers ...

founded. *

871 __NOTOC__ Year 871 ( DCCCLXXI) was a common year starting on Monday of the Julian calendar. Events By place Europe * The English retreat onto the Berkshire Downs. The Great Heathen Army, led by the Danish Viking kings Halfdan and ...

–

899 __NOTOC__ Year 899 ( DCCCXCIX) was a common year starting on Monday of the Julian calendar. Events By place Europe * Summer – Arnulf of Carinthia, the King of East Francia, enlists the support of the Magyars, to raid northern Ita ...

: Reign of

, the first king of the English. Alfred theGreat

* 872:

settled by Ingolfur Arnarson from

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 ...

. * 875–

884 __NOTOC__ Year 884 ( DCCCLXXXIV) was a leap year starting on Wednesday of the Julian calendar. Events By place Europe * March 1 – Diego Rodríguez Porcelos, count of Castile, founds and repopulates (''repoblación'') Burgos a ...

Huang Chao Huang Chao (835 – July 13, 884) was a wealthy Chinese salt trader and soldier who is primarily known for instigating the Huang Chao Rebellion. In 878, he proclaimed himself emperor and the establishment of a new Qi dynasty. Huang Chao's re ...

leads an unsuccessful rebellion against the

in China. *

results in the victory of

over the Danish warlord

. *

885 Year 885 ( DCCCLXXXV) was a common year starting on Friday of the Julian calendar. Events By place Europe * Summer – Emperor Charles the Fat summons a meeting of officials at Lobith (modern Netherlands), and accuses Hugh, an ...

: Arrival of the disciples of

Saints Cyril and Methodius Cyril (; born Constantine, 826–869) and Methodius (; born Michael, 815–885) were brothers, Byzantine Christian theologians and missionaries. For their work evangelizing the Slavs, they are known as the "Apostles to the Slavs". They are ...

Clement of Ohrid Saint Clement (or Kliment) of Ohrid ( Bulgarian, Macedonian, , ''Kliment Ohridski''; , ''Klḗmēs tē̂s Akhrídas''; ; – 916) was one of the first medieval Bulgarian saints, scholar, writer, and apostle to the Slavs. He was one of the mos ...

and

Naum of Preslav Naum ( Bulgarian and ), also known as Naum of Ohrid or Naum of Preslav (c. 830 – December 23, 910), was a medieval Bulgarian writer and missionary among the Slavs, considered one of the Seven Apostles of the First Bulgarian Empire. He was a ...

in Bulgaria. Development of the

Cyrillic Alphabet The Cyrillic script ( ) is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic, Turkic, Mongolic, Uralic, Caucasian and Iranic-speaking countries in Southeastern Europe, Easte ...

. *

Abbo Cernuus Abbo Cernuus ("the Crooked"), Abbo Parisiensis, or Abbo of Saint-Germain (c. 850c. 923) was a Neustrian Benedictine monk and poet of the Abbey of Saint-Germain-des-Prés in Paris. He was born about the middle of the ninth century. Abbo was prese ...

becomes witness to the Siege of Paris by Vikings. *

888 888 commonly refers to: * 888 (number), an integer * 888 BC, a year of the 9th century BC * AD 888, a year of the Julian calendar 888 or triple eight may also refer to: Telecommunication * 888 is prefix/area code for toll-free telephone num ...

: The

Carolingian Empire The Carolingian Empire (800–887) was a Franks, Frankish-dominated empire in Western and Central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as List of Frankish kings, kings of the Franks since ...

declines and falls after the death of

Charles the Fat Charles the Fat (839 – 13 January 888) was the emperor of the Carolingian Empire from 881 to 887. A member of the Carolingian dynasty, Charles was the youngest son of Louis the German and Hemma, and a great-grandson of Charlemagne. He was t ...

. * 893:

Council of Preslav The People's Council of Preslav () took place in 893. It was among the most important events in the history of the First Bulgarian Empire and was a cornerstone of the Christianization of Bulgaria under prince Boris I. Background and sources In 88 ...

Vladimir-Rasate Vladimir-Rasate () was the ruler of the First Bulgarian Empire from 889 to 893. Biography In 853 or 854, the Bulgar Army led by Vladimir, the son of Boris I of Bulgaria, invaded Serbia in an attempt to exact vengeance for the previous defeat of ...

is dethroned and succeeded as Prince of Bulgaria by Simeon I; the capital is moved from

Pliska Pliska ( , ) was the first capital of the First Bulgarian Empire during the Middle Ages and is now List of cities and towns in Bulgaria, a small town in Shumen Province, on the Ludogorie plateau of the Danubian Plain (Bulgaria), Danubian Plain, 20 ...

Preslav The modern Veliki Preslav or Great Preslav (, ), former Preslav (; until 1993), is a city and the seat of government of the Veliki Preslav Municipality (Great Preslav Municipality, new Bulgarian: ''obshtina''), which in turn is part of Shumen P ...

; the Byzantine clergy is expelled and replaced by Bulgarian;

Old Bulgarian Old Church Slavonic or Old Slavonic ( ) is the first Slavic literary language and the oldest extant written Slavonic language attested in literary sources. It belongs to the South Slavic subgroup of the Balto-Slavic branch of the Indo-European ...

becomes the official language of the country. *

895 __NOTOC__ Year 895 ( DCCCXCV) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * The Magyars are expelled from western Siberia, and settle in the Carpathian Basin, under the leadership of Árpád ( ...

896 __NOTOC__ Year 896 ( DCCCXCVI) was a leap year starting on Thursday of the Julian calendar. Events By place Europe * February – King Arnulf of Carinthia invades Italy at the head of an East Frankish expeditionary army. He storms ...

: The year of the

Magyars Hungarians, also known as Magyars, are an ethnic group native to Hungary (), who share a common culture, language and history. They also have a notable presence in former parts of the Kingdom of Hungary. The Hungarian language belongs to the ...

arrival in

Pannonia Pannonia (, ) was a Roman province, province of the Roman Empire bounded on the north and east by the Danube, on the west by Noricum and upper Roman Italy, Italy, and on the southward by Dalmatia (Roman province), Dalmatia and upper Moesia. It ...

. This year is widely accepted as the beginning of the Hungarian "Landtaking". *

: King Alfred the Great of Wessex, First King of The English, dies. *

: The oldest text discovered in the

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

—an acquittance document in

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 ...

—is inscribed on a copperplate in

Luzon Luzon ( , ) is the largest and most populous List of islands in the Philippines, island in the Philippines. Located in the northern portion of the List of islands of the Philippines, Philippine archipelago, it is the economic and political ce ...

. The acquittance took place on 21 April 900Julian equivalent of the indicated Hindu calendar date: the 4th day, a

Monday Monday is the day of the week that takes place between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week. Names The names of the day of the week were co ...

, of the darkening half of the month

Vaisakha Vaisakha (, ) is a month of the Hindu calendar that corresponds to April/May in the Gregorian Calendar. In the Indian national calendar, Vaisakha is the second month of the year. It is the first month of the Vikram Samvat calendar, Odia calen ...

in Shaka year 822 and involved several aristocrats and high-ranking officials from kingdoms within the islands of Luzon, Mindanao, and Java. The document is currently called the

Laguna copperplate inscription The Laguna Copperplate Inscription is an official acquittance ( debt relief) certificate inscribed onto a copper plate in the Shaka year 822 ( Gregorian A.D. 900). It is the earliest-known, extant, calendar-dated document found within the Phil ...

. * Late 9th century:

stretches from the mouth of the

Danube The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...

Epirus Epirus () is a Region#Geographical regions, geographical and historical region, historical region in southeastern Europe, now shared between Greece and Albania. It lies between the Pindus Mountains and the Ionian Sea, stretching from the Bay ...

and

Bosnia Bosnia and Herzegovina, sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe. Situated on the Balkans, Balkan Peninsula, it borders Serbia to the east, Montenegro to the southeast, and Croatia to th ...

. * Late 9th century:

Pallava dynasty The Pallava dynasty existed from 275 CE to 897 CE, ruling a significant portion of the Deccan, also known as Tondaimandalam. The Pallavas played a crucial role in shaping in particular southern Indian history and heritage. The dynasty ros ...

ends in

Southern India South India, also known as Southern India or Peninsular India, is the southern part of the Deccan Peninsula in India encompassing the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana as well as the union territories of ...

. * Late 9th century: Womb World mandala, To-ji,

Kyoto Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it t ...

, is made.

Heian period The is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kammu, moved the capital of Japan to Heian-kyō (modern Kyoto). means in Japanese. It is a ...

Unknown date

* Reign of

, and concurrent (and controversially labeled)

in Western Europe. * An unknown event causes the

decline Decline may refer to: *Decadence, involves a perceived decay in standards, morals, dignity, religious faith, or skill over time *in marketing, the stage in the product life cycle when demand for a product begins to taper off * "Decline" (song), 20 ...

of the Maya Classical Era. *

Beowulf ''Beowulf'' (; ) is an Old English poetry, Old English poem, an Epic poetry, epic in the tradition of Germanic heroic legend consisting of 3,182 Alliterative verse, alliterative lines. It is one of the most important and List of translat ...

might have been written down in this century; alternatively, it could also have been in the 8th century. * Large-scale

attacks on Europe begin, devastating countless numbers of people. * Oseberg

ship burial A ship burial or boat grave is a burial in which a ship or boat is used either as the tomb for the dead and the grave goods, or as a part of the grave goods itself. If the ship is very small, it is called a boat grave. This style of burial was pr ...

. * The

begin their conquest of

(roughly modern-day

Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...

), a process that will take several decades to be completed. * The Tukolor settle in the

Senegal Senegal, officially the Republic of Senegal, is the westernmost country in West Africa, situated on the Atlantic Ocean coastline. It borders Mauritania to Mauritania–Senegal border, the north, Mali to Mali–Senegal border, the east, Guinea t ...

river valley. *

traders settle in the northwest and southeast of

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

. * In

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 ...

, some cities became free republics: for instance

Forlì Forlì ( ; ; ; ) is a ''comune'' (municipality) and city in Emilia-Romagna, Northern Italy, and is, together with Cesena, the capital of the Province of Forlì-Cesena.The city is situated along the Via Emilia, to the east of the Montone river, ...

, in

889 __NOTOC__ Year 889 ( DCCCLXXXIX) was a common year starting on Wednesday of the Julian calendar. Events By place Europe * Guy III, duke of Spoleto, defeats the Lombard king Berengar I at the Trebbia River, and is acclaimed as king ...

. * 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. (

Early history of Sudan The history of Sudan refers to the territory that today makes up Republic of the Sudan and the state of South Sudan, which became independent in 2011. The territory of Sudan is geographically part of a larger African region, also known as "Suda ...

). *

Harald Fairhair Harald Fairhair (; – ) was a Norwegian king. According to traditions current in Norway and Iceland in the eleventh and twelfth centuries, he reigned from 872 to 930 and was the first Monarchy of Norway, King of Norway. Supposedly, two ...

was victorious at the

Battle of Hafrsfjord The Battle of Hafrsfjord () was a naval battle fought in Hafrsfjord sometime between 872 and 900 that resulted in the unification of Norway, later known as the Kingdom of Norway (872–1397), Kingdom of Norway. After the battle, the victorious Vi ...

, and

was unified into one kingdom. * The

Medieval Warm Period The Medieval Warm Period (MWP), also known as the Medieval Climate Optimum or the Medieval Climatic Anomaly, was a time of warm climate in the North Atlantic region that lasted from about to about . Climate proxy records show peak warmth occu ...

begins. * The

Coptic period The "Coptic period" is an informal designation for Late Roman Egypt (3rd−4th centuries) and Byzantine Egypt (4th−7th centuries). This era was defined by the religious shifts in Egyptian culture to Coptic Christianity from ancient Egyptian re ...

, at its most broad definition, ends. * Page from

Koran The Quran, also Romanization, romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a Waḥy, revelation directly from God in Islam, God (''Allah, Allāh''). It is organized in 114 chapters (, ) which ...

( Surah II:286 and title

Surah III Al Imran (, ; The Family of Imran) is the third chapter (sūrah) of the Quran with two hundred verses ('' āyāt''). This chapter is named after the family of Imran (Joachim), which includes Imran, Saint Anne (wife of Imran), Mary, and Jesus ...

) in

kufic The Kufic script () is a style of Arabic script, that gained prominence early on as a preferred script for Quran transcription and architectural decoration, and it has since become a reference and an archetype for a number of other Arabic scripts ...

script, from

Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...

, is made. Now kept at The

Metropolitan Museum of Art The Metropolitan Museum of Art, colloquially referred to as the Met, is an Encyclopedic museum, encyclopedic art museum in New York City. By floor area, it is the List of largest museums, third-largest museum in the world and the List of larg ...

New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...

Inventions, discoveries, introductions

Algebra Algebra is a branch of mathematics that deals with abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic ope ...

Quadratic equations In mathematics, a quadratic equation () is an equation that can be rearranged in standard form as ax^2 + bx + c = 0\,, where the variable (mathematics), variable represents an unknown number, and , , and represent known numbers, where . (If and ...

: Indian mathematician Śrīdharācārya derived the quadratic formula used for solving quadratic equations. * First image of a rotary grindstone in a European source—illustration shows crank, first known use of a crank in the West (

Utrecht Psalter The Utrecht Psalter (Utrecht, Universiteitsbibliotheek, MS Bibl. Rhenotraiectinae I Nr 32.) is a ninth-century illuminated manuscript, illuminated psalter which is a key masterpiece of Carolingian art; it is probably the most valuable manuscript ...

) * First known printed book, the ''

Diamond Sutra The ''Diamond Sutra'' (Sanskrit: ) is a Mahayana, Mahāyāna Buddhism, Buddhist sutra from the genre of ('perfection of wisdom') sutras. Translated into a variety of languages over a broad geographic range, the ''Diamond Sūtra'' is one of th ...

'', printed in China using

woodblock printing Woodblock printing or block printing is a technique for printing text, images or patterns used widely throughout East Asia and originating in China in antiquity as a method of textile printing, printing on textiles and later on paper. Each page ...

in 868. * Invention 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 ...

by Chinese

Taoist Taoism or Daoism (, ) is a diverse philosophical and religious tradition indigenous to China, emphasizing harmony with the Tao ( zh, p=dào, w=tao4). With a range of meaning in Chinese philosophy, translations of Tao include 'way', 'road', ...

Alchemists Alchemy (from the Arabic word , ) is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practised in China, India, the Muslim world, and Europe. In its Western form, alchemy is first ...

. *

Chess Chess is a board game for two players. It is an abstract strategy game that involves Perfect information, no hidden information and no elements of game of chance, chance. It is played on a square chessboard, board consisting of 64 squares arran ...

reaches

. *

Vulgar Latin Vulgar Latin, also known as Colloquial, Popular, Spoken or Vernacular Latin, is the range of non-formal Register (sociolinguistics), registers of Latin spoken from the Crisis of the Roman Republic, Late Roman Republic onward. ''Vulgar Latin'' a ...

begins to develop into various

Romance languages The Romance languages, also known as the Latin or Neo-Latin languages, are the languages that are Language family, directly descended from Vulgar Latin. They are the only extant subgroup of the Italic languages, Italic branch of the Indo-E ...

. * Two syllabaries or

kana are syllabary, syllabaries used to write Japanese phonology, Japanese phonological units, Mora (linguistics), morae. In current usage, ''kana'' most commonly refers to ''hiragana'' and ''katakana''. It can also refer to their ancestor , wh ...

are developed from simplified Chinese characters in

. * The

Tibetan Script The Tibetan script is a segmental writing system, or '' abugida'', forming a part of the Brahmic scripts, and used to write certain Tibetic languages, including Tibetan, Dzongkha, Sikkimese, Ladakhi, Jirel and Balti. Its exact origins ...

had its third and last orthographical reform.

References

Bibliography

* * {{DEFAULTSORT:9th Century 1st millennium 09th century

West Africa

Southeastern Nigeria

Ghana Empire

Western Europe

Britain and Ireland

Art

Events

Unknown date

Inventions, discoveries, introductions

See also

References

Bibliography