Classical mythology

both the body of and the study of myths from the ancient Greeks and Romans as they are used or transformed by cultural reception

Classical or Greco-Roman mythology usually means the mythology, and the related polytheistic rituals and practices, of Classical Antiquity.

Roman religion joined with Greek religion over time. This began in the eighth century BC when Greeks colonized Magna Graecia in southern Italy. The two traditions had joined to the point of being almost the same by the first century BC. See