Establishment of Catholic orthodox, which required Christians to be baptized, partake of Eucharist, and call Jesus Lord; also required acceptance of creed, canonical writings, and authority of bishops; Rome made center of Christianity based on Peter's martyrdom there and Jesus' calling him the rock upon which his church would be built
b) The Goths had already taken up Christianity and helped spread it to other tribes; strong organization and influence of Roman church helped to keep Christianity afloat in the West
