مرسوم ميلانو
Although the Edict of Milan is commonly presented as Constantine's first great act as a Christian emperor, it is disputed whether the Edict of Milan was an act of genuine faith. The document could be seen as Constantine's first step in creating an alliance with the Christian God, who he considered the strongest deity. At that time, he was concerned about social stability and the protection of the empire from the wrath of the Christian God: in this view, the Edict could be a pragmatic political decision rather than a religious shift. However, the majority of historians believe that Constantine's conversion to Christianity was genuine, and that the Edict of Milan was merely the first official act of Constantine as a dedicated Christian. This view is supported by Constantine's ongoing favors on behalf of Christianity during the rest of his reign.