What was the nature of traditional …

The traditional religious culture:

(i) The traditional religious culture of the classical world, both Greek and Roman, had been polytheist . That is, it involved a multiplicity of cults that included both Roman/Italian gods like Jupiter, Juno, Minerva and Mars, as well as numerous Greek and eastern deities worshipped in thousands of temples, shrines and sanctuaries throughout the empire.

(ii) Polytheists had no common name or label to describe themselves. The other great religious tradition in the empire was Judaism. But Judaism was not a monolith either, and there was a great deal of diversity within the Jewish communities of late antiquity.

(iii) Thus, the ‘Christianisation, of the empire in the fourth and fifth centuries was a gradual and complex process. Polytheism did not disappear overnight, especially in the western provinces, where the Christian bishops waged a running battle against beliefs and practices they condemned more than the Christian laity did.

(iv) The boundaries between religious communities were much more fluid in the fourth century than they would become thanks to the repeated efforts of religious leaders, the powerful bishops who now led the Church, to rein in their followers and enforce a more rigid set of beliefs and practices.