4th century

The 4th Century AD consists of the years 301-400.
==Events==
* Earliest extant manuscript of the gnostic Gospel of Judas.
* Official New Testament cannon established. The Book of Revelation is included over the protests of John Chrysostom
* Arianism develops in Egypt
* 312. Constantine the Great converts to Christianity.
* 313. Edict of Milan legalized Christianity in the Roman Empire
* 325. First Council of Nicaea formulated the original Nicene Creed. The creed was, in part, a response to Arianism.
* 381. The Second Ecumenical Council revised the Nicene Creed. The revised creed is known as the Nicene-Constantinopolitan Creed. 
* 381. Christianity becomes the state religion of the Roman Empire.
==Births and Deaths==
* 339. Death of Eusebius of Caesarea.
* 340. Birth of Ambrose of Milan
* 347. Birth of Jerome
* 354. Birth of Augustine of Hippo
* April 4, 397. Death of Ambrose of Milan.
Category:Centuries