841

Europe

 * : -  and  defeat.
 * Battle at Magh-Ochtar in, Ireland, at which is defeated by the Southern Uí Neill.
 * Founding of the town of Dyflinn or  in Ireland

Asia

 * In the Chinese capital of the  and  were closed every night 1 hour and three quarters before  (by government-ordered curfew), yet night markets thrived in residential areas. The local government attempted to shut the night markets down in this year, but with the decline of the government's authority by the mid 9th century, this edict (like many others) was largely ignored as urban dwellers kept attending the night markets regardless.

Deaths

 * , Chinese Buddhist monk of the  (born )