857

Years: 853 854 855 856 - 857 - 858 859 860 861
Decades: 820s 830s 840s - 850s - 860s 870s 880s
Centuries: 8th century - 9th century - 10th century

Events

Viking raid of Dorestad.
Michael III of Byzantium, under influences of his uncle Bardas, banishes his mother Theodora. Bardas becomes the most powerful person in the empire.

Births

Deaths

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