Polytheism

Polytheism was a term for religions which believed in the existence of multiple gods.

The Betrushians were split into two known countries, with differing religious beliefs. The Cutch were polytheistic, while the Ismetch had one God. (PROSE: St Anthony's Fire)

The early Roman Empire was polytheistic and featured state-sponsored occultism, (TV: The Fires of Pompeii)