Historical Events in 313 AD Jan 1 Start of Roman (Pontifical) Indiction Apr 30 Licinius unifies the entire Eastern Roman Empire under his rule Famous People Who Died in 313 AD Apr 30 Galerius Valerius Maximinus [Daia], Emperor of Rome (310-313), commits suicide after a miltary defeat Share On Facebook Share On Twitter 312 AD History by Year 314 AD