Roman religion
Roman religion in the early Roman Empire was polytheistic and local, with rituals varying between localities. Religion as it is understood in the modern world did not exist in the Graeco-Roman

 ...

According to Roger Bagnall, the rise of Christianity did come, at least partly, at the expense of paganism as people stopped one and joined the other. He writes that this story has traditionally

 ...

For many years it has been axiomatic that the Roman elite ceased to have any real belief in the traditional forms of Roman polytheism, and as a result consigned it to neglect and decline.
James B. Rives, classics scholar, has written that: "Evidence for

 ...

Constantine
E. A. Judge provides a detailed study demonstrating that a fully organized church system existed

 ...

• Christianity and paganism
• Religious policies of Constantine the Great
• Religious policies of Constantius II

 ...

• Bagnall, Roger S. (1987). "Conversion and Onomastics: A Reply". Zeitschrift für Papyrologie und Epigraphik. 69: 243–250. ISSN 0084-5388. JSTOR 20186672.
• Bagnall, Roger S. (1993). Egypt in Late Antiquity. Princeton, NJ: Princeton University Press.

 ...

• Athanassiadi, Polymnia (November 1993). "Persecution and response in late paganism: the evidence of Damascius". The Journal of Hellenic

 ...