Years: 842 843 844 845 - 846 - 847 848 849 850

Decades: 810s 820s 830s - 840s - 850s 860s 870s

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

Events

• The Moors temporarily recapture León.
• August: Arab pirates sack the Vatican.
• Xuanzong II succeeds Wuzong as emperor of China.

Births

• November 1 - Louis the Stammerer, king of West-Francia
• December 6 - Hasan al-Askari, Shia Imam (d. 874)

Deaths