291

Year 291 (CCXCI) was a common year starting on Thursday of the Julian calendar. 

 Events 
 By place 
 Roman Empire 
 Emperor Diocletian signs peace treaties with the kingdoms of Aksum and Nubia.

 China 
 War of the Eight Princes: After the death of Emperor Sima Yan a civil war starts among the princes and dukes of the Jin Dynasty.

 Births 
 Li Xiu, female general during the Jin Dynasty
 Saint Agnes, Christian martyress (d. c. 304)
 Saint Hilarion, anchorite and saint (d. 371)  
 Saint Philomena, Christian martyress (d. c. 304)

 Deaths 
 Sima Liang, regent during the rule of Sima Yan  
 Sima Wei, prince during the Jin Dynasty (b. 271)
 Wei Guan, general of the Kingdom of Wei (b. 220)
 Wen Yang, general of the Kingdom of Wei  (b. 238)
 Yang Jun, official during the rule of Sima Yan 

Category:290s