Decades: 760s 770s 780s 790s 800s - 810s - 820s 830s 840s 850s 860s

Years: 808 809 810 811 812 - 813 - 814 815 816 817 818

Table of contents

1 Events 2 Births 3 Deaths

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)