357

Roman Empire

 * :  leads Roman forces to victory against the  near.
 * gives Julian supreme command of all military operations in.
 * Constantius enters Rome for the first time to celebrate his victory over and to address the  and the people of Rome.
 * The Imperial Library of is founded.

Asia

 * The reign of, the emperor of , commences in.
 * The rout the  army in Western Asia.