Sumerian religion

Sumerian religion was the religion practiced and adhered to by the people of Sumer, the first literate civilization of ancient Mesopotamia. The Sumerians regarded their divinities as responsible for all matters pertaining to the natural and social orders.[3]:3–4

Sumerian religion
Wall plaque showing libations by devotees and a naked priest, to a seated god and a temple. Ur, 2500 BCE.[1][2]