Events

• June 22 - Byzantine Emperor Michael I is defeated in a war against the Bulgarians.
• July 12 - A revolt puts Leo V on the throne; Michael becomes a monk. Beginning of the Second Iconoclastic Period.
• Louis the Pious crowned co-emperor with his father Charlemagne.
• Baghdad school of astronomy opened by Al Mamon.
• Third Council of Tours: priests are ordered to preach in the vernacular (either Vulgar Latin or German)

Births

Deaths

• Abu Nuwas, poet

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