History
850
General
Population: 225 Million*
- Entertainment: "The Edda" mythical poem written
Origin of Church modes in music
Photius the Patriarch of Constantinople creates his "Bibliotheca"
Polyphonic music developed
- Food: Coffee discovered by Arabian goatherd named Kaidi
- Technology: Arabs perfect astrolabe
Chinese use gunpowder
Africa
- Zimbabwe: Construction of acropolis at Zimbabwe, Rhodesia
Americas
- Southern Mayan cities collapse
Foundation of Mayan Chichén Itzá
Toltecs rule central Mexico
Foundation of Chimú capital Chan Chan in S America
Asia
- China: First gunpowder use in China
- Japan: Tsunami smashes north coast of Japan
- Tibet: Tibetan power collapses - also of N Italy
Europe
- General: This decade Northmen from DEN settle ENG
- Bulgaria: Bulgarian empire on the Volga established with the capital at Bulgary
- France: Famine in Paris
- German States: Jews settle in Germany and begin to develop Yiddish
- Italian States: Salerno university founded
- Russia: Rurik a Northman becomes ruler of Kiev – compatriots begin to trade with Constantinople and Khazans
- Scotland: Kenneth MacAlpine the King of Scots annexes Pictish lands
Middle East
- Byzantine Empire: University of Constantinople opened