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Millennium:	1st millennium
Centuries:	8th century · 9th century · 10th century
Decades:	800s 810s 820s 830s 840s 850s 860s 870s 880s 890s
Categories:	Births - Deaths Establishments - Disestablishments

As a means of recording the passage of time the 9th century was the century that lasted from 801 to 900.

Contents 1 Western European 1.1 "Dark Ages" applied later to this period 1.2 Art of the "Dark Ages" 2 Worldwide Events 3 Significant people 4 Inventions, discoveries, introductions 5 Decades and years

Starting about 400 years after the period, influential figures in the early phases of the Renaissance would refer back to these times, and the 3 centuries previous, as the "Dark Ages." The reference based on the eclipse of the Western Roman Empire, after AD 476, and the general loss of classical art forms, reduction of urban centers, and diffusion of political power to a petty level. Regional enities never grew to the level of nationhood, let alone empire. Only the Roman Catholic Papacy had true international power, and this was somewhat limited due to poor communications between the regions of Europe. Classical civilization's former record was preserved by the efforts of Catholic monks hand copying manuscripts, but since only a tiny percentage of the populace could read and write, little information or knowledge was disseminated. Most western people were engaged in rural agriculture, and the Roman cities were largely in ruins. Still, certain arts, related to the Church and the ruling class, led to at least a small degree of support to artisans. There is a legacy of brass and gold objects preserved in the world's museums from Europe's "Dark Ages."

First and foremost, art existed because the Church required it. The basic tools of the Roman Catholic mass, thousands of golden art objects were made. Sacred cups, vessels, reliqueries, crucifixes, rosaries, altar pieces, and statues of the Virgin and Child or Saints all kept the flame of art from dying out in the period. Architecture began to revive to some extent by the 9th century. It took the form of Church facilities of all kinds, and the first castle fortifications since Roman times began to take form in simple "moat and baily" castles, or simple "strong point" tower structures, with little refinement.

• The Arab merchant Shulama wrote that Chinese junk ships could carry 600 to 700

passengers aboard for sailing missions into the Indian Ocean. He wrote that the draft of Chinese ships was too deep for entering the Euphrates River (modern-day Iraq), which forced them to land small boats on the banks of the river for passengers and cargo instead.

• An unknown event causes the decline of the Maya Classical Era.
• Beowulf might have been written down in this century, though it could also have been in the 8th century.
• Reign of Charlemagne, and concurrent (and controversially labeled) Carolingian Renaissance in Western Europe.
• Large-scale Viking attacks on Europe begin, devastating countless numbers of people.
• Oseberg ship burial.
• The Magyars arrive in what is now Hungary, taking it from Bulgaria.
• The Tukolor settle in the Senegal river valley.
• Muslim traders settle in the northwest and southeast of Madagascar.
• 800 — Arab fleet sails up the Tiber.
• 803 — Construction on the Leshan Giant Buddha in Tang Dynasty China is complete, after 90 years of rock-carving on a massive cliff-side.
• C. 813–c. 915 — period of serious Arab naval raids on shores of Tyrrhenian and Adriatic seas.
• 830 - House of Wisdom, a library and translation institute, established by al-Ma'mun, Abbasid caliph, in Baghdad to transfer the knowledge of Greeks, Persians, Idnians, etc to Muslim world.[1] Also The Compendious Book on Calculation by Completion and Balancing which is one of the book of algebra is written by Al-Khwarizmi who worked there.
• 848–852 — The west bank of the Tiber is annexed into the city of Rome. A defensive wall, commissioned by Pope Leo IV, is built around what came to be called the Leonine City.
• 851 — The Arab merchant Suleiman al-Tajir visits the Chinese seaport at Guangzhou in southern China, and observes the manufacturing of porcelain, the Islamic mosque built at Guangzhou, the granary system of the city, and how its municipal administration functioned.
• 863 — The Chinese author Duan Chengshi describes the slave trade, ivory trade, and ambergris trade of Somalia in East Africa.
• 870 — Prague Castle founded.
• 800–909 — rule of Aghlabids as a independent Muslim dynasty in North Africa.
• 850–875 — The first Norse settlers arrive on Iceland.
• 859 Muslim established the oldest university in the world, University of Al Karaouine, in Fez, Morocco^[1]
• 863–879 — period of schism between eastern and western churches.
• 864 — Christianization of Bulgaria under Boris I
• 875–884 — Huang Chao leads an unsuccessful rebellion against the Tang Dynasty in China.
• Late 9th century: Bulgaria stretches from the mouth of the Danube to Epirus and Bosnia.
• In Italy, some cities became free republics: for instance Forlì, in the 889.
• The Christian Nubian kingdom reaches its peak of prosperity and military power. (Early history of Sudan).
• Harald Fairhair was victorious at the battle of Hafrsfjord, and Norway was unified into one kingdom.
• Chess reaches Japan.
• 862 — The beginning the Rurik Dynasty in Russia
• 885 — arrival of the disciples of SS. Cyril and Methodius, Clement of Ohrid and Naum of Preslav in Bulgaria. Development of the Cyrillic Alphabet.
• 867 — onward Revival of the Byzantine Empire under the Macedonian dynasty.
• The Medieval Warm Period begins.

• Alfred the Great
• Arnulf of Carinthia
• Charlemagne
• Wang Kon
• Saint Cyril and Saint Methodius
• Han Yu
• Clement of Ohrid
• Naum of Preslav
• Kenneth I of Scotland
• Louis the Pious
• Adi Sankara
• Huang Chao
• Harald I of Norway
• Rurik
• Boris I of Bulgaria
• Basil I the Macedonian (Βασίλειος Α') (811–886), ruled (867)–(886)

• Al-Jahiz
• Pope Joan, legendary female Pope
• Taizu of Later Liang

• Vulgar Latin begins to devolve into various Romance languages
• First image of a rotary grindstone in a European source — illustration shows crank, first known use of a crank in the West (Utrecht Psalter, A.D. 843)
• Invention of gunpowder by Chinese Taoist Alchemists
• First known printed book, the Diamond Sutra, printed in China using woodblock printing in 868 AD.