Famous Birthday
On this day in 280, Constantine I, byname Constantine the Great, Latin in full Flavius Valerius Constantinus, (born February 27, after 280 CE?, Naissus, Moesia [now Niš, Serbia]—died May 22, 337, Ancyrona, near Nicomedia, Bithynia [now İzmit, Turkey]), first Roman emperor to profess Christianity. He not only initiated the evolution of the empire into a Christian state but also provided the impulse for a distinctively Christian culture that prepared the way for the growth of Byzantine and Western medieval culture. Source: Britannica.