Decades: 750s 760s 770s 780s 790s - 800s - 810s 820s 830s 840s 850s

Years: 797 798 799 800 801 - 802 - 803 804 805 806 807

• 31 October - Irene deposed as Emperoress of Byzantium and replaced by Nicephorus I. She is banished to Lesbos.
• Jayavarman II declares the Khmer independent and establishes the kingdom of Angkor.
• Beginning of a "period of confusion" without a clear king in Bulgaria.
• Egbert becomes king of Wessex.
• Vikings sack Iona.

• Æthelmund, Earl of Hwicce (fallen in battle).\n