857

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

Decades: 800s 810s 820s 830s 840s - 850s - 860s 870s 880s 890s 900s

Years: 852 853 854 855 856 - 857 - 858 859 860 861 862

• 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

• February 4 - Rabanus Maurus[?], abbot of Fulda, theologian