Nanna/Sin: God Of The Moon

The Mesopotamian god of the moon was called Nanna. One of the oldest gods in their pantheon, this one is referred to as "Sin" in various sources. Nanna was primarily a lunar deity, but he was also thought to be able to predict the future and have power over the fates of people. As a result, this god was closely linked to rites and magic. Nanna in particular was associated with astrology, omens, and divination. Ningal, the goddess of fertility and reeds, is named as Nanna's wife. Nanna is also listed as the son of Enlil. Nanna is said to be the father of Ereshkigal, Ishtar, and Shamash in certain Mesopotamian writings. Nanna was revered throughout Mesopotamian history and his religion was extensive in the Fertile Crescent. He was one of the oldest gods in their pantheon. The Great Ziggurat in Ur, a Sumerian city, was devoted to Nanna, whose religion was concentrated there.

Nanna's significance stemmed from his function in upholding the physical universe, much as Shamash. The Mesopotamians relied on Nanna to keep the moon from disappearing, much as they thought they would not have the sun without Shamash. The lunar phases were used by the Mesopotamians to split their annual calendars, which also used the moon to keep track of time. As divination and the study of omens were fundamental to Mesopotamian nations' belief systems, Nanna was also significant to their religion. Because religion was frequently incorporated into Mesopotamian politics, Nanna also had sway over the decisions made in court cases and was frequently requested to "illuminate" the truth. That's all aboout the last most influential gods of Mesopotamia.