After two years, Constantine’s Edict of Milan granted Christian freedom of worship throughout the Empire. Constantine convened the first ecumenical church council in order to resolve any problems. The development of Christianity was the rise of the bishop of Rome to a position of preeminence in the hierarchy of the church. There were only one of several patriarchs at first, then the Roman bishop became recognized as the leader of the church in the West with the title of pope, which comes from the Greek word, “Father”. As time passes, the emperor Theodosius made Christianity the official religion of the Empire. Henceforth paganism was persecuted and even the Olympic games were suppressed at that time. Both pope and the Frankish kings put efforts on their military battles in extending his empire and influence made Germanic Kings to accept the aspects and concepts of Christianity. According to the inspired defiance of the Christian martyrs, who welcomes death and could not be overcome, the concept of the death penalty which was enforced for those who refused to sacrifice to the Roman gods expands to the mind for