Cult of Ishtar / Inanna
The organized worship of the most important goddess in the Mesopotamian pantheon, attested at Uruk from the late 4th millennium BCE (c. 3500 BCE). Inanna (Sumerian) and Ishtar (Akkadian) were originally independent deities syncretized during the Akkadian period (c. 2334-2154 BCE), largely through hymns by the poet-priestess Enheduanna, daughter of Sargon of Akkad. The cult centered on temples across major cities with Uruk as primary seat. Priestesses and specialized clergy including gala, kurgarru, and assinnu served in temples performing elegies, war dances, and ritual offerings. The cult involved sacred marriage rituals (hieros gamos), festivals reenacting Ishtar descent into the Underworld, and rites tied to Venus cycles and agriculture. Gender-nonconforming individuals were integral to cultic service. The cult wielded enormous religious and political influence across Mesopotamia for over three millennia, later shaping the Phoenician Astarte and Greek Aphrodite traditions.