The Sumerians were polytheistic and they worshiped many Gods and Goddesses. The Sumerian gods usually were human like. Anu was the god of the heavens and king of the gods was an important God of Sumerians.The Sumerians tried to please their gods by planting crops, playing music, building statues, and other things. The social structure of the Sumerians was composed of four classes. These classes were Upper Class, Middle Common Class, Lower Middle Class and Slaves. The Sumerian city-states were ruled by a king that the Sumerians believed chosen by God. This king holds the power of enacting laws, collecting taxes and leading the armies.
They believed in deities. The major deities in the Sumerian pantheon included An, the god of the heavens, Enlil, the god of wind and storm, Enki, the god of water and human culture, Ninhursag, the goddess of fertility and the earth, Utu, the god of the sun and justice, and his father Nanna, the god of the moon.