commander of the east to decide who will be sole emperor of rome. and the day before the battle, he has a startling vision. >> he looks up and he sees the sign of the cross. >> and he thought it was a promise from jesus that he would win the battle. >> konstantin -- constantine does win the battle. and the new emperor is forever changed by his vision. >> he decides he's going to be a christian. >> one of his first official acts as the first christian emperor of rome is to issue the edict of milan. this not only makes