Dr. John Rao discusses early Christianity and the Greco-Roman world particularly the Church, the Roman State and Constantine the Great. The Roman State’s relationship with Christianity was a peculiar one, combining certain benevolent features with assaults reflecting the hostility of the pagan elite and mob. Dr. John Rao discusses here the varied aspects of Church-State relations, Tertullian’s critique, the intensification of the hostility due to the change of government/society in the so-called Dominate (200’s A.D. onwards) and the extraordinary turn of events brought on by Constantine’s legalization and support of Christianity.