780

Years: 776 777 778 779 - 780 - 781 782 783 784

Decades: 750s 760s 770s - 780s - 790s 800s 810s

Centuries: 7th century - 8th century - 9th century

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

• February 7 - Nicetas, Patriarch of Constantinople
• September 8 - Leo IV, Byzantine Emperor