350. Magentius proclaims himself emperor; Constans flees into Spain, where he is assassinated.
351. Constantius defeats Magentius at the battle of Mursa.
352. Italy declares against Magentius, who gains a useless victory at Pavia.
353. Constantius sole emperor, Magentius being overthrown by him.
Constantius convokes the Council of Arles, which condemns Arianism.
354. Birth of St. Augustine.
355. Julian, being appointed cæsar, takes command of the Roman troops in Gaul.
Athanasius is deposed by the Council of Milan.
356. Julian is successful against the Alemanni and Franks in Gaul.
357. Constantius visits Rome; he presents an obelisk from Egypt to the city.