Constantine reigned from 306-337, as the Roman Emperor of Rome. Under his rule Christianity became the major religion in the Roman Empire. Constantine was exposed to Christianity by his mother Helena, but did not declare himself a Christian until he was a mature adult. In 311, Constantine, along with two other rulers within the Roman Empire, decided to loosen the restrictions against Christianity1. Prior to his battle against Maxentius, Constantine had a vision of chi “rho, the first two letters in the name of Christ, and hears a voice that said, "In this, conquer . Constantine took this as a sign and ordered Chi-Rho to be placed on the shields of his soldiers. Constantine defeated Maxentius and became the one and only emperor in the western region2. There is little evidence to support this claim just as there is little evidence to support that he continued to worship other gods after 312. Constantine's identification with the Christian "Almighty God  and the support of the imperial army made him believe that he was invincible in battle. From the description of his biographer and Bishop Eusebius it appeared to be the moment of conversion to Christianity3. The persecution and martyrdom of Christians did not restrain the growth of Christianity, which was viewed as disruptive to the Roman Empire4. In conjunction with Licinius, the emperor of the East, Constantine issued the edict of Milan, which grants freedom of religious practice under their rule. This included the religious practices of pagan worship. The edict also restored to Christians, property, places of worship, and compensated those whose property was sold5. Clergy in the western region benefited from the Edict of Milan6. The churches new relationship with Constantine gave clergy access to the imperial treasury. The edict was viewed as a positive move in the history of Christianity. In 321, Constantine stated that Sunday would be set aside as the day of worship