And so it came to pass that Constantine became Emperor.
The next thing he does is issue an Edict of Tolerance. All religions within the Empire were now supposed to be safe from state persecution. But that was a fig leaf. All along Constantine angled to give Christians the edge. He thought it might be a good idea dangle the prospect of Christianity becoming the state religion for Rome. After all, if he could get these “Christians” to believe that Rome was scheduled to become God’s Kingdom on earth, he’d have himself a bunch of zealots willing to die for Rome. And the name, Roman Catholic was born.