“He … earned the title ‘the Great’ because of his devout Christianity.” —Michael Grant In lists of Roman Emperors, Theodosius is far from the most notable. One historian noted that this son of an emperor killed for high treason “veered disconcertingly between opposites—febrile activity and indolent sluggishness, a simple soldierly life and the splendors of the court.” But this little-known emperor forever changed the course