List of 350 Major News Events in History, Most Important Historical Events in 350
| Date | Event |
|---|---|
| March 1, 350 | Vetranio proclaims himself Caesar after being encouraged to do so by Constantina, sister of Constantius II. |
| June 3, 350 | The Roman usurper Nepotianus, of the Constantinian dynasty, proclaims himself Roman emperor, entering Rome at the head of a group of gladiators. |
| December 25, 350 | Vetranio meets Constantius II at Naissus (Serbia) and is forced to abdicate his imperial title. Constantius allows him to live as a private citizen on a state pension. |