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The 9th century was a period from 801 ( DCCCI) through 900 ( CM) in accordance with the
Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematics, Greek mathematicians and Ancient Greek astronomy, as ...
. The
Carolingian Renaissance The Carolingian Renaissance was the first of three medieval renaissances, a period of cultural activity in the Carolingian Empire. It occurred from the late 8th century to the 9th century, taking inspiration from the Christian Roman Empire of t ...
and the Viking raids occurred within this period. In the Middle East, the
House of Wisdom The House of Wisdom ( ar, بيت الحكمة, Bayt al-Ḥikmah), also known as the Grand Library of Baghdad, refers to either a major Abbasid public academy and intellectual center in Baghdad or to a large private library belonging to the Abba ...
was founded in
Abbasid The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttal ...
Baghdad Baghdad (; ar, بَغْدَاد , ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon and the Sassanid Persian capital of Ctesipho ...
, attracting many scholars to the city. The field of
algebra Algebra () is one of the areas of mathematics, broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathem ...
was founded by the Muslim polymath
al-Khwarizmi Muḥammad ibn Mūsā al-Khwārizmī ( ar, محمد بن موسى الخوارزمي, Muḥammad ibn Musā al-Khwārazmi; ), or al-Khwarizmi, was a Persian polymath from Khwarazm, who produced vastly influential works in mathematics, astrono ...
. The most famous Islamic Scholar
Ahmad ibn Hanbal Ahmad ibn Hanbal al-Dhuhli ( ar, أَحْمَد بْن حَنْبَل الذهلي, translit=Aḥmad ibn Ḥanbal al-Dhuhlī; November 780 – 2 August 855 CE/164–241 AH), was a Muslim jurist, theologian, ascetic, hadith traditionist, and ...
was tortured and
imprisoned Imprisonment 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 "false imprisonment". Imprisonment does not necessari ...
by Abbasid official Ahmad ibn Abi Du'ad during the reign of Abbasid caliph
al-Mu'tasim Abū Isḥāq Muḥammad ibn Hārūn al-Rashīd ( ar, أبو إسحاق محمد بن هارون الرشيد; October 796 – 5 January 842), better known by his regnal name al-Muʿtaṣim biʾllāh (, ), was the eighth Abbasid caliph, ruling ...
and caliph
al-Wathiq Abū Jaʿfar Hārūn ibn Muḥammad ( ar, أبو جعفر هارون بن محمد المعتصم; 17 April 812 – 10 August 847), better known by his regnal name al-Wāthiq bi’llāh (, ), was an Abbasid caliph who reigned from 842 until 847 ...
. In Southeast Asia, the height of the
Mataram Kingdom The Mataram Kingdom (, jv, ꦩꦠꦫꦩ꧀, ) was a Javanese people, Javanese Hinduism, Hindu–Buddhism, Buddhist kingdom that flourished between the 8th and 11th centuries. It was based in Central Java, and later in East Java. Established b ...
happened in this century, while Burma would see the establishment of the major kingdom of Pagan.
Tang China The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingd ...
started the century with the effective rule under Emperor Xianzong and ended the century with the Huang Chao rebellions. While the
Maya Maya may refer to: Civilizations * Maya peoples, of southern Mexico and northern Central America ** Maya civilization, the historical civilization of the Maya peoples ** Maya language, the languages of the Maya peoples * Maya (Ethiopia), a popu ...
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 Edo people of what is now southeastern
Nigeria Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya 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 G ...
developed bronze casts of
human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...
s,
animal Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motilit ...
s, and
legendary creature A legendary creature (also mythical or mythological creature) is a type of fictional entity, typically a hybrid, that has not been proven and that is described in folklore (including myths and legends), but may be featured in historical accou ...
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 Benin Empire. Evidence of long-distance trade between Benin and Portugal was also discovered through the thousands of glass beads found at Old Cairo at the workshops of Fustat. The development of the Benin Kingdom can be attributed to the proficiency at advanced metallurgy seen in the bronze jewellery crafted by local artisans.


Ghana Empire

The
Ghana (Wagadu) Empire The Ghana Empire, also known as Wagadou ( ar, غانا) or Awkar, was a West African empire based in the modern-day southeast of Mauritania and western Mali that existed from c. 300 until 1100. The Empire was founded by the Soninke people, ...
(before c. 830 until c. 1235) was located in what is now southeastern Mauritania and western
Mali Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Ma ...
. 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 a ...
, which would exist in some form until the early 20th century.


Western Europe


Britain and Ireland

Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...
experienced a great influx of
Viking Vikings ; non, víkingr is the modern name given to 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 s ...
peoples in the 9th century as the
Viking Age The Viking Age () was the period during the Middle Ages when Norsemen known as Vikings undertook large-scale raiding, colonizing, conquest, and trading throughout Europe and reached North America. It followed the Migration Period The ...
continued from the previous century. The kingdoms of the
Heptarchy The Heptarchy were the seven petty kingdoms of Anglo-Saxon England that flourished from the Anglo-Saxon settlement of Britain in the 5th century until they were consolidated in the 8th century into the four kingdoms of Mercia, Northumbria, Wes ...
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,; da, Store Hedenske Hær 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 Scandi ...
, which was supposedly led by
Ivar the Boneless Ivar the Boneless ( non, Ívarr hinn Beinlausi ; died c. 873), 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 Ragnar Loðbrok and his wife As ...
,
Halfdan Ragnarsson Halfdan Ragnarsson ( non, Hálfdan; oe, Halfdene or ''Healfdene''; sga, Albann; died 877) was a Viking leader and a commander of the Great Heathen Army The Great Heathen Army,; da, Store Hedenske Hær also known as the Viking Great A ...
, and
Guthrum Guthrum ( ang, Guðrum, c. 835 – c. 890) was King of East Anglia in the late 9th century. Originally a native of what is now Denmark, he was one of the leaders of the "Great Summer Army" that arrived in Reading during April 871 to join forces ...
. This Danish army first arrived in Britain in 865 in
East Anglia East Anglia is an area in the East of England, often defined as including the counties of Norfolk, Suffolk and Cambridgeshire. The name derives from the Anglo-Saxon kingdom of the East Angles, a people whose name originated in Anglia, in ...
. After conquering that kingdom, the army proceeded to capture the city of
York York is a cathedral city with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss in North Yorkshire, England. It is the historic county town of Yorkshire. The city has many hist ...
(
Jorvik Scandinavian York ( non, Jórvík) Viking Yorkshire or Norwegian York is a term used by historians for the south of Northumbria (modern-day Yorkshire) during the period of the late 9th century and first half of the 10th century, when it was do ...
) and establish the kingdom of
Jorvik Scandinavian York ( non, Jórvík) Viking Yorkshire or Norwegian York is a term used by historians for the south of Northumbria (modern-day Yorkshire) during the period of the late 9th century and first half of the 10th century, when it was do ...
. The Danes went on to subjugate the kingdom of
Northumbria la, Regnum Northanhymbrorum , conventional_long_name = Kingdom of Northumbria , common_name = Northumbria , status = State , status_text = Unified Anglian kingdom (before 876)North: Anglian kingdom (af ...
and to take all but the western portion of
Mercia la, Merciorum regnum , conventional_long_name=Kingdom of Mercia , common_name=Mercia , status=Kingdom , status_text=Independent kingdom (527–879)Client state of Wessex () , life_span=527–918 , era= Heptarchy , event_start= , date_start= , ...
. The remaining kingdom of
Wessex la, Regnum Occidentalium Saxonum , conventional_long_name = Kingdom of the West Saxons , common_name = Wessex , image_map = Southern British Isles 9th century.svg , map_caption = S ...
was the only kingdom of the
Heptarchy The Heptarchy were the seven petty kingdoms of Anglo-Saxon England that flourished from the Anglo-Saxon settlement of Britain in the 5th century until they were consolidated in the 8th century into the four kingdoms of Mercia, Northumbria, Wes ...
left. Alfred the Great managed to maintain his kingdom of
Wessex la, Regnum Occidentalium Saxonum , conventional_long_name = Kingdom of the West Saxons , common_name = Wessex , image_map = Southern British Isles 9th century.svg , map_caption = S ...
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 in 878. Alfred re-established
Anglo-Saxon The Anglo-Saxons were a Cultural identity, cultural group who inhabited England in the Early Middle Ages. They traced their origins to settlers who came to Britain from mainland Europe in the 5th century. However, the ethnogenesis of the Anglo- ...
rule over the western half of
Mercia la, Merciorum regnum , conventional_long_name=Kingdom of Mercia , common_name=Mercia , status=Kingdom , status_text=Independent kingdom (527–879)Client state of Wessex () , life_span=527–918 , era= Heptarchy , event_start= , date_start= , ...
, and the
Danelaw The Danelaw (, also known as the Danelagh; ang, Dena lagu; da, Danelagen) was the part of England in which the laws of the Danes held sway and dominated those of the Anglo-Saxons. The Danelaw contrasts with the West Saxon law and the Mercia ...
was established which separated
Mercia la, Merciorum regnum , conventional_long_name=Kingdom of Mercia , common_name=Mercia , status=Kingdom , status_text=Independent kingdom (527–879)Client state of Wessex () , life_span=527–918 , era= Heptarchy , event_start= , date_start= , ...
into halves, the eastern half remaining under the control of the Danes.
Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
was also affected by the Viking expansion across the
North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...
. Extensive raids were carried out all along the coast and eventually, permanent settlements were established, such as that of
Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 ...
in 841. 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 ; non, víkingr is the modern name given to 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 se ...
set up impermanent camps, which were called longphorts 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.
Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to th ...
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 (; sco, Orkney; on, Orkneyjar; nrn, Orknøjar), also known as the Orkney Islands, is an archipelago in the Northern Isles of Scotland, situated off the north coast of the island of Great Britain. Orkney is 10 miles (16 km) nort ...
and
Shetland Shetland, also called the Shetland Islands and formerly Zetland, is a subarctic archipelago in Scotland lying between Orkney, the Faroe Islands and Norway. It is 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 who lived in what is now northern and eastern Scotland (north of the Firth of Forth) during Late Antiquity and the Early Middle Ages. Where they lived and what their culture was like can be inferred from ea ...
, 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 ( mga, Cináed mac Ailpin, label= Medieval Gaelic, gd, Coinneach mac Ailpein, label=Modern Scottish Gaelic; 810 – 13 February 858) or Kenneth I was King of Dál Riada (841–850), King of the Picts (843–858), and the K ...
, the king of
Dál Riata Dál Riata or Dál Riada (also Dalriada) () was a Gaelic kingdom that encompassed the western seaboard of Scotland and north-eastern Ireland, on each side of the North Channel. At its height in the 6th and 7th centuries, it covered what is ...
at that time. The kingdom of
Dál Riata Dál Riata or Dál Riada (also Dalriada) () was a Gaelic kingdom that encompassed the western seaboard of Scotland and north-eastern Ireland, on each side of the North Channel. At its height in the 6th and 7th centuries, it covered what is ...
was located on the western coast of Scotland, and Viking incursions destroyed it after the death of its previous king, Áed mac Boanta in 839, according to the
Annals of Ulster The ''Annals of Ulster'' ( ga, Annála Uladh) are annals of 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 Luinín ...
. 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, the first King of Scots was Kenneth I MacAlpin (), who founded the state in 843. Historically, the Kingdom of Scotland is thought to have gr ...
or
King of Scots The monarch of Scotland was the head of state of the Kingdom of Scotland. According to tradition, the first King of Scots was Kenneth I MacAlpin (), who founded the state in 843. Historically, the Kingdom of Scotland is thought to have grown ...
.


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 (801–900). * The period from 800 to 809, known as the 800s decade, almost synonymous with the 81st decade (801-810). {{Letter-NumberCombDisambig ...
:
Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
n kingdoms of Muja (then Pagan
Brunei Brunei ( , ), formally Brunei Darussalam ( ms, Negara Brunei Darussalam, Jawi alphabet, Jawi: , ), is a country located on the north coast of the island of Borneo in Southeast Asia. Apart from its South China Sea coast, it is completely sur ...
/Vijayapura) and Mayd (
Ma-i Ma-i or Maidh (also spelled Ma'I, Mai, Ma-yi or Mayi; Baybayin: ; Hanunoo: ; Hokkien ; Mandarin ) was an ancient 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.Brunei Rediscovered: A Survey of Early Times By Robert Nicholl Page 38
/ref> * 802:
Jayavarman II Jayavarman II ( km, ជ័យវរ្ម័នទី២; c. 770 – 850) (reigned c. 802–850) 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 ...
of the
Khmer people The Khmer people ( km, ជនជាតិខ្មែរ, ) are a Southeast Asian ethnic group native to Cambodia. They comprise over 90% of Cambodia's population of 17 million.
in
Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailan ...
founds the Khmer empire and establishes the Angkorian dynasty. *
803 __NOTOC__ Year 803 ( DCCCIII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Emperors Nikephoros I and Charlemagne settle their imperial boundaries i ...
: Construction on the
Leshan Giant Buddha The Leshan Giant Buddha () 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 Min River and Dadu River in the south ...
in
Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdo ...
China is complete, after 90 years of rock-carving on a massive cliff-side. * 805820:
Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdo ...
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 Shunzo ...
. *
809 __NOTOC__ Year 809 ( DCCCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Spring – Siege of Serdica: Krum, ruler (''khan'') of the Bulgari ...
815 __NOTOC__ Year 815 ( DCCCXV) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Byzantine–Bulgarian Treaty: Emperor Leo V the Armenian signs a 30-yea ...
: War between the
Byzantine empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantin ...
and
Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Mac ...
. * 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 p ...
fought between a Byzantine force led by emperor
Nicephorus I Nikephoros I or Nicephorus I ( gr, Νικηφόρος; 750 – 26 July 811) was Byzantine emperor from 802 to 811. Having served Empress Irene as '' genikos logothetēs'', he subsequently ousted her from power and took the throne himself. In r ...
and a Bulgarian army commanded by Khan
Krum Krum ( bg, Крум, el, Κροῦμος/Kroumos), often referred to as Krum the Fearsome ( bg, Крум Страшни) was the Khan of Bulgaria from sometime between 796 and 803 until his death in 814. During his reign the Bulgarian territory ...
. Byzantines are defeated in a series of engagements, culminating with the death of
Nicephorus I Nikephoros I or Nicephorus I ( gr, Νικηφόρος; 750 – 26 July 811) was Byzantine emperor from 802 to 811. Having served Empress Irene as '' genikos logothetēs'', he subsequently ousted her from power and took the throne himself. In r ...
. * 813: Byzantines are heavily defeated by the Bulgars at Versinikia. * 813: China is reunited. * c. 813 – c. 915: Period of serious Arab naval raids on shores of Tyrrhenian and Adriatic seas. * 814:
Charlemagne Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first Em ...
dies in the city of Aachen. *
815 __NOTOC__ Year 815 ( DCCCXV) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Byzantine–Bulgarian Treaty: Emperor Leo V the Armenian signs a 30-yea ...
: A 30-year peace agreement is signed between Bulgaria and the Byzantine Empire. * 820:
Muḥammad ibn Mūsā al-Khwārizmī Muhammad ( ar, مُحَمَّد;  570 – 8 June 632 CE) was an Arab religious, social, and political leader and the founder of Islam. According to Islamic doctrine, he was a prophet divinely inspired to preach and confirm the monot ...
writes his treatise on Algebra The Compendious Book on Calculation by Completion and Balancing. * 824:
Han Yu Han Yu (; 76825 December 824), courtesy name Tuizhi (), and commonly known by his posthumous name Han Wengong (韓文公), was a Chinese essayist, poet, philosopher, and politician during the Tang dynasty who significantly influenced the devel ...
dies. * 825:
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 ended Mercian ...
: King Egbert of Wessex defeats Mercia and establishes the kingdom of Wessex as the supreme Kingdom in England. * 825:
Borobudur Borobudur, also transcribed Barabudur ( id, Candi Borobudur, jv, ꦕꦤ꧀ꦝꦶꦧꦫꦧꦸꦝꦸꦂ, Candhi Barabudhur) is a 9th-century Mahayana Buddhist temple in Magelang Regency, not far from the town of Muntilan, in Central Java, Indo ...
is completed during the reign of Samaratungga.Dumarçay (1991). * 827
902 __NOTOC__ Year 902 ( CMII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events By place Europe * Spring – Adalbert II, margrave of Tuscany, revolts against Emperor Louis II ...
:
Aghlabid The Aghlabids ( ar, الأغالبة) were an Arab dynasty of emirs from the Najdi tribe of Banu Tamim, who ruled Ifriqiya and parts of Southern Italy, Sicily, and possibly Sardinia, nominally on behalf of the Abbasid Caliph, for about a ...
s established emirate (province) in
Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...
and subsequently raids Southern Italy. * 830: The
Ghana (Wagadu) Empire The Ghana Empire, also known as Wagadou ( ar, غانا) or Awkar, was a West African empire based in the modern-day southeast of Mauritania and western Mali that existed from c. 300 until 1100. The Empire was founded by the Soninke people, ...
is established. * 830: The
House of Wisdom The House of Wisdom ( ar, بيت الحكمة, Bayt al-Ḥikmah), also known as the Grand Library of Baghdad, refers to either a major Abbasid public academy and intellectual center in Baghdad or to a large private library belonging to the Abba ...
, a library and translation institute established in
Baghdad Baghdad (; ar, بَغْدَاد , ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon and the Sassanid Persian capital of Ctesipho ...
by
al-Ma'mun Abu al-Abbas Abdallah ibn Harun al-Rashid ( ar, أبو العباس عبد الله بن هارون الرشيد, Abū al-ʿAbbās ʿAbd Allāh ibn Hārūn ar-Rashīd; 14 September 786 – 9 August 833), better known by his regnal name Al-Ma'm ...
,
Abbasid The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttal ...
caliph A caliphate or khilāfah ( ar, خِلَافَة, ) is an institution or public office under the leadership of an Islamic steward with the title of caliph (; ar, خَلِيفَة , ), a person considered a political-religious successor to th ...
, to transfer the knowledge of Greeks, Persians, Indians, etc. to the Muslim world. The Compendious Book on Calculation by Completion and Balancing, a book of
algebra Algebra () is one of the areas of mathematics, broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathem ...
, is also written there by
Al-Khwarizmi Muḥammad ibn Mūsā al-Khwārizmī ( ar, محمد بن موسى الخوارزمي, Muḥammad ibn Musā al-Khwārazmi; ), or al-Khwarizmi, was a Persian polymath from Khwarazm, who produced vastly influential works in mathematics, astrono ...
. * 835:
Sweet Dew Incident The Sweet Dew 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 eunuchs. The emperor plan ...
occurs. Emperor Wenzong of the
Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdo ...
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 2n ...
s of the Tang court, but the plot is foiled. * 839842: Vlastimir defeats Presian. * 840: Death of
Louis the Pious Louis the Pious (german: Ludwig der Fromme; french: Louis le Pieux; 16 April 778 – 20 June 840), also called the Fair, and the Debonaire, was King of the Franks and co-emperor with his father, Charlemagne, from 813. He was also King of Aqui ...
. * 841:
Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 ...
is founded on the east coast of Ireland by the
Vikings Vikings ; non, víkingr is the modern name given to 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 se ...
. * 842: 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: The Carolingian Empire is at its height in territory and area. The three sons of
Louis the Pious Louis the Pious (german: Ludwig der Fromme; french: Louis le Pieux; 16 April 778 – 20 June 840), also called the Fair, and the Debonaire, was King of the Franks and co-emperor with his father, Charlemagne, from 813. He was also King of Aqui ...
reach an agreement known as the
Treaty of Verdun The Treaty of Verdun (), agreed in , divided the Francia, Frankish Empire into three kingdoms among the surviving sons of the emperor Louis the Pious, Louis I, the son and successor of Charlemagne. The treaty was concluded following almost three ...
and split the
Carolingian empire The Carolingian Empire (800–888) was a large Frankish-dominated empire in western and central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as kings of the Franks since 751 and as kings of the ...
into three divisions;
East Francia East Francia (Medieval Latin: ) or the Kingdom of the East Franks () was a successor state of Charlemagne's empire ruled by the Carolingian dynasty until 911. It was created through the Treaty of Verdun (843) which divided the former empire int ...
was given to
Louis the German Louis the German (c. 806/810 – 28 August 876), also known as Louis II of Germany and Louis II of East Francia, was the first king of East Francia, and ruled from 843 to 876 AD. Grandson of emperor Charlemagne and the third son of Louis the Pi ...
,
West Francia In medieval history, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () refers to the western part of the Frankish Empire established by Charlemagne. It represents the earliest stage of the Kingdom of France, lasting from about ...
to
Charles the Bald Charles the Bald (french: Charles le Chauve; 13 June 823 – 6 October 877), also known as Charles II, 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 s ...
and
Middle Francia Middle Francia ( la, Francia media) 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 Franc ...
to
Lothair I Lothair I or Lothar I ( Dutch and Medieval Latin: ''Lotharius''; German: ''Lothar''; French: ''Lothaire''; Italian: ''Lotario'') (795 – 29 September 855) was emperor (817–855, co-ruling with his father until 840), and the governor of Bav ...
. * 844: The first Viking raid in Iberia * 845:
Buddhism Buddhism ( , ), also known as Buddha Dharma and Dharmavinaya (), is an Indian religion or philosophical tradition based on teachings attributed to the Buddha. It originated in northern India as a -movement in the 5th century BCE, and ...
is persecuted and banned in China. * 846859: Emperor Xuānzong of Tang reigned. He was considered the last capable emperor of the
Tang dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdo ...
. * 846: 11,000
Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens Saracen ( ) was a term used in the early centuries, both in Greek and Latin writings, to refer to the people who lived in and near what was designated by the Romans as Arabia P ...
Arab squadrons from Africa, with 500 horses, desecrate
Christian Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words '' Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρ ...
shrines in
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
, including the tombs and basilicas of Sts. Peter and Paul. *
848 __NOTOC__ Year 848 ( DCCCXLVIII) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Europe * Summer – Bordeaux, capital of Aquitaine, falls into the hands of Viking rai ...
852: The west bank of the
Tiber The Tiber ( ; it, Tevere ; la, Tiberis) is the 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 Ri ...
is annexed into the city of
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
. A defensive wall, commissioned by
Pope Leo IV Pope Leo IV (790 – 17 July 855) was the bishop of Rome and ruler of the Papal States from 10 April 847 to his death. He is remembered for repairing Roman churches that had been damaged during the Arab raid against Rome, and for building the Le ...
, is built around what came to be called the Leonine City as a defensive response to the
Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens Saracen ( ) was a term used in the early centuries, both in Greek and Latin writings, to refer to the people who lived in and near what was designated by the Romans as Arabia P ...
desecration of
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
in 846. * 850875: The first Norse settlers arrive on
Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its ...
. * 851: The Arab merchant Sulaiman al-Tajir visits the Chinese
seaport A port is a maritime law, maritime facility comprising one or more Wharf, wharves or loading areas, where ships load and discharge Affreightment, cargo and passengers. Although usually situated on a sea coast or estuary, ports can a ...
at
Guangzhou Guangzhou (, ; ; or ; ), also known as Canton () and alternatively romanized as Kwongchow or Kwangchow, is the capital and largest city of Guangdong province in southern China. Located on the Pearl River about north-northwest of Hong ...
in southern China, and observes the manufacturing of
porcelain Porcelain () is a ceramic material made by heating substances, generally including materials such as kaolinite, in a kiln to temperatures between . The strength and translucence of porcelain, relative to other types of pottery, arises main ...
, the Islamic
mosque A mosque (; from ar, مَسْجِد, masjid, ; literally "place of ritual prostration"), also called masjid, is a Place of worship, place of prayer for Muslims. Mosques are usually covered buildings, but can be any place where prayers (sujud) ...
built at Guangzhou, the
granary A granary is a storehouse or room in a barn for threshed grain or animal feed. Ancient or primitive granaries are most often made of pottery. Granaries are often built above the ground to keep the stored food away from mice and other animal ...
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 ...
administration functioned. *
856 __NOTOC__ Year 856 (Roman numerals, DCCCLVI) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * March 15 – Emperor Michael III overthrows the reg ...
:
Prambanan Prambanan ( id, Candi Prambanan, jv, ꦫꦫꦗꦺꦴꦁꦒꦿꦁ, Rara Jonggrang) is a 9th-century Hindu temple compound in Special Region of Yogyakarta, Indonesia, dedicated to the Trimūrti, the expression of God as the Creator (Brahma), the P ...
is completed. Miksic (1997) According to the
Shivagrha inscription The Shivagrha inscription is an inscription from the Mataram Kingdom of Central Java, dated in ''chandrasengkala'' (chronogram) ''”Wwalung Gunung sang wiku”'', that is, the year 856 CE (or 778 in the native Saka Calendar). The inscription was ...
, Rakai Pikatan — 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 Medang Kingdom in 9th century Central Java. She was the daughter of Sailendran king Samaratungga (r. 812—833). H ...
 — 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 as a
madrasa Madrasa (, also , ; Arabic: مدرسة , pl. , ) is the Arabic word for any type of educational institution, secular or religious (of any religion), whether for elementary instruction or higher learning. The word is variously transliterated '' ...
in
Fez, Morocco Fez or Fes (; ar, فاس, fās; zgh, ⴼⵉⵣⴰⵣ, fizaz; french: Fès) is a city in northern inland Morocco and the capital of the Fès-Meknès administrative region. It is the second largest city in Morocco, with a population of 1.11 m ...
. * 860:
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 ...
, the maharaja of Suvarnadvipa and the ruler of Srivijaya, constructs the Buddhist temple and monastery in
Nalanda Nalanda (, ) was a renowned '' mahavihara'' ( Buddhist monastic university) in ancient Magadha (modern-day Bihar), India.India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...
, 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: Assassination of
Abbasid The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttal ...
caliph
al-Mutawakkil Abū al-Faḍl Jaʿfar ibn Muḥammad al-Muʿtaṣim bi-ʾllāh ( ar, جعفر بن محمد المعتصم بالله; March 822 – 11 December 861), better known by his regnal name Al-Mutawakkil ʿalā Allāh (, "He who relies on God") was ...
(r. 847–861) and decline of the
Abbasid Caliphate The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Mutta ...
. *
862 __NOTOC__ Year 862 ( DCCCLXII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe * The Varangians (called Rus'), under the leadership of Rurik, a Viking chieft ...
: The beginning of the
Rurik Dynasty The Rurik dynasty ( be, Ру́рыкавічы, Rúrykavichy; russian: Рю́риковичи, Ryúrikovichi, ; uk, Рю́риковичі, Riúrykovychi, ; literally "sons/scions of Rurik"), also known as the Rurikid dynasty or Rurikids, was ...
in Rus'. *
863 __NOTOC__ Year 863 ( DCCCLXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * September 3 – Battle of Lalakaon: A Byzantine army confronts ...
: The Chinese author Duan Chengshi describes the
slave trade Slavery and enslavement are both the state and the condition of being a slave—someone forbidden to quit one's service for an enslaver, and who is treated by the enslaver as property. Slavery typically involves slaves being made to perf ...
,
ivory trade The ivory trade is the commercial, often illegal trade in the ivory tusks of the hippopotamus, walrus, narwhal, mammoth, and most commonly, African and Asian elephants. Ivory has been traded for hundreds of years by people in Africa and ...
, and
ambergris Ambergris ( or , la, ambra grisea, fro, ambre gris), ''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 mari ...
trade of
Somalia Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣūmāl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constitut ...
in
East Africa East Africa, Eastern Africa, or East of Africa, is the eastern subregion of the African continent. In the United Nations Statistics Division scheme of geographic regions, 10-11-(16*) territories make up Eastern Africa: Due to the histori ...
. *
862 __NOTOC__ Year 862 ( DCCCLXII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe * The Varangians (called Rus'), under the leadership of Rurik, a Viking chieft ...
: The
Bagratuni Dynasty The Bagratuni or Bagratid dynasty ( hy, Բագրատունի, ) was an Armenian royal dynasty which ruled the medieval Kingdom of Armenia from c. 885 until 1045. Originating as vassals of the Kingdom of Armenia of antiquity, they rose to beco ...
of
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. *
863 __NOTOC__ Year 863 ( DCCCLXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * September 3 – Battle of Lalakaon: A Byzantine army confronts ...
879: Period of schism between Eastern and Western churches. * 864:
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 i ...
under Boris I * 867: Onward revival of the
Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantin ...
under the
Macedonian dynasty The Macedonian dynasty (Greek: Μακεδονική Δυναστεία) ruled the Byzantine Empire from 867 to 1056, following the Amorian dynasty. During this period, the Byzantine state reached its greatest extent since the Muslim conquests, ...
. *
868 __NOTOC__ Year 868 ( DCCCLXVIII) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe * King Charles the Bald meets his brother Louis the German at Metz. They agree ...
:
Ahmad ibn Tulun Ahmad ibn Tulun ( ar, أحمد بن طولون, translit=Aḥmad ibn Ṭūlūn; c. 20 September 835 – 10 May 884) was the founder of the Tulunid dynasty that ruled Egypt and Syria between 868 and 905. Originally a Turkic slave-soldier, in 868 ...
breaks away from the
Abbasid Caliphate The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Mutta ...
and establishes the independent
Tulunid The Tulunids (), were a Mamluk dynasty of Turkic origin who were the first independent dynasty to rule Egypt, as well as much of Syria, since the Ptolemaic dynasty. They were independent from 868, when they broke away from the central authority ...
dynasty. * 869: An earthquake and tsunami struck Japan's
Sanriku coast The is a coastal region on the Pacific Ocean, extending from southern Aomori Prefecture, through Iwate Prefecture and northern Miyagi Prefecture in northeastern Honshū, which is Japan's main island. The name comes from the historical region of S ...
, killing 1,000 people. * 870:
Christianization of the Serbs The Serbian Orthodox Church ( sr-Cyrl, Српска православна црква, Srpska pravoslavna crkva) is one of the autocephalous (ecclesiastically independent) Eastern Orthodox Christian churches. The majority of the population in ...
. * 870:
Prague Castle Prague Castle ( cs, Pražský hrad; ) is a castle complex in Prague 1 Municipality within Prague, Czech Republic, built in the 9th century. It is the official office of the President of the Czech Republic. The castle was a seat of power for ki ...
founded. * 871899: Reign of Alfred the Great, the first king of the English. * 872:
Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its ...
settled by Ingolfur Arnarson from
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
. * 875884:
Huang Chao Huang Chao (835 – July 13, 884) was a Chinese smuggler, soldier, and rebel, and is most well known for being the leader of a major rebellion that severely weakened the Tang dynasty. Huang was a salt smuggler before joining Wang Xianzhi's ...
leads an unsuccessful rebellion against the
Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdo ...
in China. * 878: Battle of Ethandun results in the victory of Alfred the Great over the Danish warlord
Guthrum Guthrum ( ang, Guðrum, c. 835 – c. 890) was King of East Anglia in the late 9th century. Originally a native of what is now Denmark, he was one of the leaders of the "Great Summer Army" that arrived in Reading during April 871 to join forces ...
. * 885: Arrival of the disciples of
Saints Cyril and Methodius Cyril (born Constantine, 826–869) and Methodius (815–885) were two brothers and Byzantine Christian theologians and missionaries. For their work evangelizing the Slavs, they are known as the "Apostles to the Slavs". They are credited wi ...
,
Clement of Ohrid Saint Clement of Ohrid ( Bulgarian, Serbian and Macedonian: Свети Климент Охридски, ; el, Ἅγιος Κλήμης τῆς Ἀχρίδας; sk, svätý Kliment Ochridský; – 916) was one of the first medieval Bulgarian ...
and
Naum of Preslav Saint Naum ( Bulgarian and Macedonian: Свети Наум, ''Sveti Naum''), also known as Naum of Ohrid or Naum of Preslav (c. 830 – December 23, 910) was a medieval Bulgarian writer, enlightener, one of the Seven Apostles of the First ...
in Bulgaria. Development of the
Cyrillic Alphabet The Cyrillic script ( ), Slavonic script or the Slavic 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 coun ...
. * 885: Abbo Cernuus becomes witness to the Siege of Paris by Vikings. * 888: The
Carolingian Empire The Carolingian Empire (800–888) was a large Frankish-dominated empire in western and central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as kings of the Franks since 751 and as kings of the ...
declines and falls after the death of
Charles the Fat Charles III (839 – 13 January 888), also known as Charles the Fat, was the emperor of the Carolingian Empire from 881 to 888. A member of the Carolingian dynasty, Charles was the youngest son of Louis the German and Hemma, and a great-grandso ...
. * 893:
Council of Preslav The People's Council of Preslav ( bg, Преславски народен събор) 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 ...
- Vladimir-Rasate is dethroned and succeeded as Prince of Bulgaria by Simeon I; the capital is moved from
Pliska Pliska ( , cu, Пльсковъ, translit=Plĭskovŭ) was the first capital of the First Bulgarian Empire during the Middle Ages and is now a small town in Shumen Province, on the Ludogorie plateau of the Danubian Plain, 20 km northeast ...
to
Preslav The modern Veliki Preslav or Great Preslav ( bg, Велики Преслав, ), former Preslav ( bg, link=no, Преслав; until 1993), is a city and the seat of government of the Veliki Preslav Municipality (Great Preslav Municipality, new ...
; the Byzantine clergy is expelled and replaced by Bulgarian;
Old Bulgarian Old Church Slavonic or Old Slavonic () was the first Slavic literary language. Historians credit the 9th-century Byzantine missionaries Saints Cyril and Methodius with standardizing the language and using it in translating the Bible and other ...
becomes the official language of the country. * 895/ 896: The year of the
Magyars Hungarians, also known as Magyars ( ; hu, magyarok ), are a nation and  ethnic group native to Hungary () and historical Hungarian lands who share a common culture, history, ancestry, and language. The Hungarian language belongs to the Ural ...
arrival in
Pannonia Pannonia (, ) was a province of the Roman Empire bounded on the north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia. Pannonia was located in the territory that is now wes ...
. This year is widely accepted as the beginning of the Hungarian "Landtaking". * 899: King Alfred the Great of Wessex, First King of The English, dies. * 900: The oldest text discovered in the
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
—an acquittance document in
Old Javanese Old Javanese or Kawi is the oldest attested phase of the Javanese language. It was spoken in the eastern part of what is now Central Java and the whole of East Java, Indonesia. As a literary language, Kawi was used across Java and on the islan ...
—is inscribed on a copperplate in
Luzon Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, ...
. 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 between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week and in countries that adopt the "Sunday-first" convention, it is ...
, of the darkening half of the month
Vaisakha Vaisakha; hi, बैसाख, Baisākh; pa, ਵਿਸਾਖ/وساکھ , te, వైశాఖ, kn, ವೈಶಾಖ, Vaiśākha; ml, വൈശാഖം, Vaiśākham; mr, वैशाख, Vaiśākh; ta, வைகாசி, Vaikāci; ne, � ...
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 ( tl, Inskripsyon sa binatbat na tanso ng Laguna, literal translation: ''Inscription on flattened copper of Laguna'') is an official acquittance inscribed onto a copper plate in the Shaka year 822 (Gregorian ...
. * Late 9th century:
Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Mac ...
stretches from the mouth of the
Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , ...
to
Epirus sq, Epiri rup, Epiru , native_name_lang = , settlement_type = Historical region , image_map = Epirus antiquus tabula.jpg , map_alt = , map_caption = Map of ancient Epirus by Heinrich ...
and
Bosnia Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and H ...
. * 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 dynasty rose to prominence after the downfall of the Satavahana dynasty, with whom they had formerly served as f ...
ends in
Southern India South India, also known as Dakshina Bharata or Peninsular India, consists of the peninsular southern part of India. It encompasses the Indian states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, and Telangana, as well as the union territ ...
. * Late 9th century: Womb World mandala, To-ji,
Kyoto Kyoto (; Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and Kobe. , the ...
, 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 Kanmu, moved the capital of Japan to Heian-kyō (modern Kyoto). means "peace" in Japanese ...
.


Unknown date

* Reign of
Charlemagne Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first Em ...
, and concurrent (and controversially labeled)
Carolingian Renaissance The Carolingian Renaissance was the first of three medieval renaissances, a period of cultural activity in the Carolingian Empire. It occurred from the late 8th century to the 9th century, taking inspiration from the Christian Roman Empire of t ...
in Western Europe. * An unknown event causes the decline of the
Maya Classical Era Mesoamerican chronology divides the history of prehispanic Mesoamerica into several periods: the Paleo-Indian (first human habitation until 3500 BCE); the Archaic (before 2600 BCE), the Preclassic or Formative (2500 BCE –  ...
. *
Beowulf ''Beowulf'' (; ang, Bēowulf ) is an Old English Epic poetry, epic poem 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 translations of Beo ...
might have been written down in this century; alternatively, it could also have been in the 8th century. * Large-scale
Viking Vikings ; non, víkingr is the modern name given to 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 s ...
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 ...
. * The
Magyars Hungarians, also known as Magyars ( ; hu, magyarok ), are a nation and  ethnic group native to Hungary () and historical Hungarian lands who share a common culture, history, ancestry, and language. The Hungarian language belongs to the Ural ...
begin their conquest of
Pannonia Pannonia (, ) was a province of the Roman Empire bounded on the north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia. Pannonia was located in the territory that is now wes ...
(roughly modern-day
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
), a process that will take several decades to be completed. * The Tukolor settle in the
Senegal Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣� ...
river valley. * Muslim traders settle in the northwest and southeast of
Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...
. * In
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
, some cities became free republics: for instance
Forlì Forlì ( , ; rgn, Furlè ; la, Forum Livii) is a ''comune'' (municipality) and city in Emilia-Romagna, Northern Italy, and is the capital of the province of Forlì-Cesena. It is the central city of Romagna. The city is situated along the Via Em ...
, in 889. * The Christian
Nubia Nubia () (Nobiin language, Nobiin: Nobīn, ) is a region along the Nile river encompassing the area between the Cataracts of the Nile, first cataract of the Nile (just south of Aswan in southern Egypt) and the confluence of the Blue Nile, Blue ...
n kingdom reaches its peak of prosperity and military power. (
Early history of Sudan The history of Sudan refers to both the territory of the Republic of the Sudan, including what became in 2011 the independent state of South Sudan. The territory of Sudan is geographically part of a larger African region, also known by the ter ...
). *
Harald Fairhair Harald Fairhair no, Harald hårfagreModern Icelandic: ( – ) 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 King of N ...
was victorious at the
Battle of Hafrsfjord The Battle of Hafrsfjord ( no, Slaget i Hafrsfjord) was a great naval battle fought in Hafrsfjord sometime between 872 and 900 that resulted in the unification of Norway, later known as the Kingdom of Norway. After the battle, the victorious Viki ...
, and
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
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 to . Climate proxy records show peak warmth occurred at diffe ...
begins. * The Coptic period, at its most broad definition, ends. * Page from
Koran The Quran (, ; Standard Arabic: , Quranic Arabic: , , 'the recitation'), also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation from God. It is organized in 114 chapters (pl.: , sin ...
( Surah II:286 and title Surah III) in
kufic 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. It ...
script, from Syria, is made. Now kept at The
Metropolitan Museum of Art The Metropolitan Museum of Art of New York City, colloquially "the Met", is the largest art museum in the Americas. Its permanent collection contains over two million works, divided among 17 curatorial departments. The main building at 100 ...
,
New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...
.


Inventions, discoveries, introductions

*
Algebra Algebra () is one of the areas of mathematics, broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathem ...
by
Al-Khwarizmi Muḥammad ibn Mūsā al-Khwārizmī ( ar, محمد بن موسى الخوارزمي, Muḥammad ibn Musā al-Khwārazmi; ), or al-Khwarizmi, was a Persian polymath from Khwarazm, who produced vastly influential works in mathematics, astrono ...
* Quadratic equations: 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 psalter which is a key masterpiece of Carolingian art; it is probably the most valuable manuscript in the Netherlands. It ...
, 843) * First known printed book, the '' Diamond Sutra'', 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 printing on textiles and later paper. Each page or image is creat ...
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, carbon (in the form of charcoal) and potassium nitrate ( saltpeter) ...
by Chinese
Taoist Taoism (, ) or Daoism () refers to either a school of philosophical thought (道家; ''daojia'') or to a religion (道教; ''daojiao''), both of which share ideas and concepts of Chinese origin and emphasize living in harmony with the '' Ta ...
Alchemists Alchemy (from Arabic: ''al-kīmiyā''; from Ancient Greek: χυμεία, ''khumeía'') is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practiced in China, India, the Muslim world, ...
. *
Chess Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king. It is sometimes called international chess or Western chess to dist ...
reaches Japan. *
Vulgar Latin Vulgar Latin, also known as Popular or Colloquial Latin, is the range of non-formal registers of Latin spoken from the Late Roman Republic onward. Through time, Vulgar Latin would evolve into numerous Romance languages. Its literary counterpa ...
begins to develop into various
Romance languages The Romance languages, sometimes referred to as Latin languages or Neo-Latin languages, are the various modern languages that evolved from Vulgar Latin. They are the only extant subgroup of the Italic languages in the Indo-European language f ...
. * Two syllabaries or
kana The term may refer to a number of syllabaries used to write Japanese phonological units, morae. Such syllabaries include (1) the original kana, or , which were Chinese characters (kanji) used phonetically to transcribe Japanese, the most pr ...
are developed from simplified Chinese characters in Japan. * The
Tibetan Script The Tibetan script is a segmental writing system (''abugida'') of Brahmic scripts, Indic origin used to write certain Tibetic languages, including Lhasa Tibetan, Tibetan, Dzongkha, Sikkimese language, Sikkimese, Ladakhi language, Ladakhi, Jire ...
had its third and last orthographical reform.


See also

*
Timeline of 9th-century Muslim history 9th century (801–900 CE / 184–288 AH) * 801: Death of Rābiʿa al-ʿAdawiyya al-Qaysiyya famous Arab Muslim saint and Sufi mystic. * 802: The Mecca Protocol: Caliph Harun al-Rashid and the leading officials of the Abbasid Caliphate perform ...


References


Bibliography

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