331. Birth of Hieronymus (St. Jerome).
333. The title of cæsar given by Constantine to his youngest son, Constans.
An edict of Constantine's exempts medical men and professors of literature from military service. This confirmed the procedure of certain former emperors.
337. Death of Constantine, soon after his baptism by Eusebius, an Arian bishop. Partition of the Roman Empire between his sons, Constantine, Constans, and Constantius.
340. Constantine II makes war upon Constans; the former is slain, and Constans becomes ruler of the greater part of the Roman Empire. Constantius rules in the East.
341. Gaul is invaded by the Franks, who resist Constans.
Ulfilas becomes bishop of the Goths.*
Violent earthquakes in Syria. The Synod of Antioch assents to an Arian creed, deposes Athanasius, and appoints Gregory bishop of Alexandria.
347. A general council is held at Sardica. The majority approves the Nicene faith; the deposition of Arian bishops voted, and the restoration of Athanasius and Marcellus to episcopal honors. The minority secede to Philippopolis and annul their acts; the two bodies mutually excommunicate each other.
348. Sapor, at the head of the Persians, defeats the Romans at Singara.