The correct answer is Constantine the Great
Constantine became a Roman emperor in AD 306, after the death of his father, Constantius Chlorine, in York, England. He took power at a time of great internal turmoil and found a decaying empire, from which even some regions of Italy wanted to disengage. He led many battles against his rivals that culminated in the defeat of Licinius in Crisopolis and Adrinopla in 323 A.D.
Constantine had a very important role in the beginning of Christianity. This is because, from A.D. 323, the Christian faith came to be accepted and even encouraged by the Romans. But it was not like that at the beginning of Christianity. In fact, for a certain period, the Christian faith was even tolerated by the Romans. But, over time, it began to expand very quickly and came to be seen as a dangerous threat. Therefore, emperors began to persecute Christians. At that time, it was common for the unfortunate spectacle of Christians being thrown to the lions in Rome's coliseum for the amusement of the crowds.
