death for their faith and sealed their testimony with their blood. In 312 A.D. Constantine the Great, the emperor of Rome, was carrying on his conquests of the world. He was suffering serious reverses, and then one day he announced that he had seen in the sky a giant cross, and over it were these words: “In this sign thou shalt conquer.” The pagan king took this to mean that if he would embrace the Cross he would be victorious, and so in what probably was an act of desperation he professed to become