This is the story of the fourth-century Roman Emperor Constantine, who converted to Christianity and changed the course of history. It is a tale of how one man's decision to follow his faith had a profound impact on the world. It tells of how Constantine's conversion to Christianity led to the
During the reign of the Roman emperor Constantine the Great (306–337 AD), Christianity began to transition to the dominant religion of the Roman Empire. Historians remain uncertain about Constantine's reasons for favoring Christianity, and theologians and historians have often argued about which form of early Christianity he subscribed to. There is no consensus among scholars as to whether he adopted his mother Helena's Christianity in his youth, or, as claimed by Eusebius of Caesarea, encouraged her to convert to the faith he had adopted.