It all depends on what you mean by "religion". In the old days before Christianity there were very few actual religions in the sense that a lifestyle or code of conduct was followed. Most religious beliefs were those of pantheism wherein people venerated a certain god for a certain reason. The Romans practiced pantheism as did all the other ancient peoples, the Jews excepted. Christianity became established as the official Roman religion in the year 380 AD.
Most historians of this era agree Christianity was established as the official religion of Rome by the Roman Emperor Constantine in 313 AD.
Roman Catholic AnswerThe Catholic religion was established by God at Pentecost around the year 33 A.D. when Our Blessed Lord sent the Holy Spirit on the apostles in the Upper Room.
The empire did not contribute much to Roman religion. This religion was well established before Roman imperial expansion, including the Greek influence on it. This influence came right from the early days of Rome, centuries before she conquered mainland Greece. It came from the Greek colonies (settlements) the Greeks established in southern Italy and Sicily in the 8th century BC and early 7th century BC.
Roman Catholic AnswerThe Roman Catholic Church was and is the Mystical Body of Christ. It is the one visible means that Our Blessed Lord established to save men.
True. Christianity was the new religion established during the Pax Romana. It is possibly the origin of the title for Jesus as Prince of Peace.
The dominant religion in the Roman Empire was the Roman religion until Christianity became the dominant religion.
Roman religion
Roman Catholicism is the main religion of Rwanda
There was not a Greco-Roman religion. Greco-Roman is a term which refers to art.
No, the religion of Islam was established by Prophet Muhammed.
isn't that the Roman Catholic religion? i think they still practice it today
Through most of their history the ancient Romans had their own religion: Roman Religion. In the Later Empire Christianity spread in the Roman Empire, was endorsed by the Roman emperors and became state religion.