Constantine is 666 and he invented Jesus Christ, as prophesied in Revelation 13:13-18. He did this as part of the conspiracy to use religion as a weapon for control and increased power. When he came to Rome he had already seen the demise of Maxentius, the Son of Emperor Maximian, and he was determined to achieve sole rule. He finally achieved that goal with the death of his eldest son, Crispus, who was executed on his orders for treason. That was one year prior to his establishment of the Catholic organisation at the Council of Nicaea in 325 AD.
The Empire was huge and comprised people from all backgrounds, languages and cultures. They were difficult to rule by one emperor whose seat of power was Rome. By his inauguration of the Vatican, which he built over the temple of Jupiter, he had a parliament of priests that people were more willing to obey and who came from the regions under their control.
To give it credibility he put the figure of Jesus Christ in it as its prophet and in the latter part of the century Jerome was charged with producing the New Testament. This he did using writings and myths floating around the empire, as he noted in his diary and letters to the Bishop of Rome, Damasus.
His cohort in the production of this work was Augustine Dea, Bishop of Hippo, who was later charged with the job of establishing another religion and prophet. According to recent disclosures by a priest who read a Vatican document he did this through a man named Mohammed. He was a friend of a faithful parishioner in his parish. Under instruction and tutored into the role the Muslim religion was also invented.
Now these two branches of Islam, the religion of Constantine and that brought to Rome by the Amors from Babylon, are at odds with each other and will probably bring about the final conflict at the end of days.