who was emperor constantine

Emperor Constantine, also known as Constantine the Great, was a Roman emperor who reigned from AD 306 to 337. He is famous for being the first Roman emperor to convert to Christianity and for playing a pivotal role in the Christianization of the Roman Empire. Constantine enacted the Edict of Milan in 313, which legalized Christian worship and ended the persecution of Christians. He also founded the city of Constantinople (modern-day Istanbul), making it the new capital of the Roman Empire, a status it held for over a millennium. His reign marked a major turning point in Roman and world history, blending Roman imperial power with Christianity and shaping the future of Europe and the Byzantine Empire.