:''For the American
area code, see
area code 850.''
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Events
By Place
Asia
★
Emperor Montoku succeeds
Emperor Nimmyō as
Emperor of Japan.
Europe
★
Louis II is crowned co-emperor with his father
Lothair I.
★ First recorded
Viking attack on the
Welsh coast.
★ Vikings of
Rorik conquer
Utrecht and keep the city for 70 years. The
bishop of Utrecht takes refuge in
Deventer.
By Topic
Religion
★
April 20 —
Guntherus becomes
Bishop of
Cologne.
Births
★
Arnulf of Carinthia, King of the East Franks (d.
899)
★
Emperor Seiwa,
Emperor of Japan (d.
881)
Deaths
★
Emperor Nimmyō,
Emperor of Japan (b.
810)
★
Ramiro I of Asturias
★
Muhammad ibn Mūsā al-Khwārizmī
★
Huangbo Xiyun, Chinese
Zen Buddhist monk