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

Years: 847 848 849 850 851 - 852 - 853 854 855 856 857

• Boris I Michael succeeds the duumvirate of Malamir and Presian as monarch of Bulgaria.

Deaths

• Abd-ar-rahman II, Umayyad ruler of Spain
• Du Mu, Chinese poet\n