Events

• Constantine VI becomes Byzantine Emperor with Irene as guardian.
• Tang De Zong becomes emperor of China.
• Drest III succeeds Alpin II as king of the Picts.
• The city of Osnabrück is founded by Charlemagne (approximate date)

Births

• al-Khwarizmi, Muslim mathematician (approximate date)

Deaths

• September 8 - Leo IV, Byzantine Emperor