Once he learned about Jesus, one of the first things he did was he issued a law called the Edict of Milan, which is a law that “No man should be denied leave of attaching himself to the rest of Christians or to whatever other religion his mind directed”. At the Council of Nycia, he asked if Jesus was a man or god and he asked how Jesus died, they used all the letters about Jesus and created the bible with them, and they argued when Jesus died which is now known as the Great Christ half are called Greek Orthodox the other half are Roman Catholics, Constantine converted to Christianity on his deathbed he was first emperor to be Christian and first to die as one. The final reason why I think Rome fell is because of the Barbarians. I think Barbarians are the reason Rome fell because about 6 other Barbaric groups attacked Rome at around the same time as each other and Rome never had a chance to rebuild and strengthen up for the next attack. Since Rome was constantly being attacked, they could never fix the damage from the previous attack. They also probably didn't have enough time to replace the soldiers they lost in the previous