846
| 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 (d. 879)
- December 6 - Hasan al-Askari, Shia Imam (d. 874)