Editing 357 (section)

=== By place ===
==== Roman Empire ====
* [[April 28]] &ndash; Emperor [[Constantius II]] enters [[Rome]] for the first time to celebrate his victory over [[Magnentius]]. He address the [[Roman Senate|Senate]] and the Roman people.
* [[August 25]] &ndash; [[Battle of Strasbourg]]: [[Julian the Apostate|Julian]], ''[[Caesar (title)|Caesar]]'' (deputy emperor) and supreme commander of the [[Late Roman army|Roman army]] in [[Gaul]], wins an important victory against the [[Alemanni]] at [[Strasbourg]] ([[Argentoratum]]), driving the barbarians back behind the [[Rhine]].
* The [[Imperial Library of Constantinople]] is founded.
* [[Ammianus Marcellinus]] describes the [[Pantheon, Rome|Pantheon]] as being "rounded like the boundary of the horizon and vaulted with a beautiful loftiness".
* Winter &ndash; Constantius II receives [[ambassador]]s from the [[Sassanid Empire|Persian Empire]]. They demand that Rome restore the lands surrendered by King [[Narseh]].

==== Asia ====
* The reign of [[Fú Jiān]], the emperor of [[Former Qin]], commences in [[China]]. 
* The [[Alans]] rout the [[Hun]] army in [[Western Asia]].

==== Ireland ====
* Saran, [[King of Ulster]], is overthrown.