View source for Theodosius the Great (emperor)

''For another saint called ''Theodosius the Great'' living in the fifth-sixth centuries, see [[Theodosius the Great (Cenobiarch)]].''

The holy and right-believing Emperor '''Theodosius I''', also called '''Theodosius the Great''', was the last emperor who ruled over both the eastern and western portions of the Roman Empire. He ruled from 379 to 395. Theodosius I is also known for making Christianity the official state religion of the Roman Empire. He was a strong defender of the Orthodox Christian faith and is a [[saint]].  His [[feast day]] is celebrated on [[January 17]].