350

Events 
 By place 
 Roman Empire 
 January 18 – Emperor Constans I is very unliked. Magnus Magnentius is made emperor at Autun (Gaul).
 January – Constans I runs away to Spain.  He is killed. Magnentius rules the Western Roman Empire.  He is nicer to Christians and Pagans. 
 March 1 – Vetranio is asked by Constantina to make himself Caesar. Constantius accepts the new emperor.
 June 3 – Iulius Nepotianus, Roman usurper, calls himself "emperor".  He enters Rome with a group of gladiators.
 June 30 – Nepotianus is defeated and killed by Marcellinus. 
 December 25 – Vetranio meets Constantius II at Naissus (Serbia). He is forced to give up his title.

 Asia 
 About this time the Huns begin to invade the Sassanid Empire.Roberts,  J: "History of the World.". Penguin, 1994.
 The city of Anbar (Iraq) is founded by king Shapur II.
 The Wei-Jie war breaks out in North China.

 By topic 
 Art 
 The church of Santa Constanza in Rome is finished.

 Births 
 Honoratus, archbishop of Arles (approximate date)
 Hypatia of Alexandria, female Neoplatonist philosopher (approximate date)
 Murong Wei, emperor of the Xianbei state Former Yan (d. 385)
 Plutarch of Athens, Greek philosopher (approximate date)
 Theodore of Mopsuestia, bishop and theologian (approximate date) 
 Zhang Xuanjing, ruler of the Chinese state Former Liang (d. 363)

 Deaths 
 Constans I, Roman Emperor 
 Eutropia, mother of Nepotianus
 June 30 – Nepotianus, Roman usurper
 Shi Jian, emperor of the Jie state Later Zhao

 References