818

By place

Byzantine Empire

• Vikings known as Rus' plunder the north coast of Anatolia, marking the first recorded raid of Rus' people on territory in the Byzantine Empire.

  Europe

• April 17 - King Bernard of Italy, illegitimate son of Pepin of Italy, is tried and condemned to death by Emperor Louis I. The Kingdom of Italy is reabsorbed into the Frankish Empire.
• The Slavs on the Timok River break their alliance with the Bulgars. Duke Ljudevit of Pannonian Croatia sends emissaries to Louis I, to assert his independence from the Franks.
• Al-Andalus: A grave rebellion breaks out in the suburbs of Cordoba, against the Umayyad Caliphate. Andalucian Arab refugees arrive in Fez.

  Britain

• The Anglo-Saxons, led by King Coenwulf of Mercia, raid Dyfed in Wales.

  Asia

• Beginning of the Lemro period: The Sambawa and Pyinsa Kingdoms are founded in present-day Myanmar.

  By topic

Religion

• Theodulf, bishop of Orléans, is deposed and imprisoned, after becoming involved in a conspiracy with Bernard of Italy.