820s

Centuries: 8th century - 9th century - 10th century

Decades: 770s - 780s - 790s - 800s - 810s - 820s - 830s - 840s - 850s - 860s - 870s

Years: 820 821 822 823 824 825 826 827 828 829

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Events:

• Egbert of Wessex rises to the position of Bretwalda.
• The Saracens conquer Crete and invade Sicily.
• The kingdom of Navarre is established.
• 829: Ansgar established the first church in Sweden.

Important people:

• Louis the Pious
• Egbert of Wessex
• Michael II
• Mamun[?]