Sumerian religious literature centers on an extensive pantheon of city-specific deities, including An, the sky god, Enlil, god of wind and authority, and Enki, god of wisdom and fresh water, each associated with a major Sumerian city and temple complex, and Sumerian temple hymns, composed to honor these deities and their earthly cult centers, represent some of the earliest sustained religious poetry to survive from anywhere in the ancient world.
The Sumerian King List, though presenting implausibly long reigns for its earliest legendary rulers, preserves valuable insight into how Sumerian civilization understood the relationship between divine authority, kingship and a catastrophic mythological flood that closely parallels flood narratives later found in Akkadian, biblical and other ancient Near Eastern traditions, suggesting a shared regional flood tradition predating any single culture's specific version. Modern Sumerian scholarship, including major digital and print corpora such as the Electronic Text Corpus of Sumerian Literature, has made this vast and linguistically unique body of the world's oldest religious and literary writing increasingly accessible to specialists and the wider public alike.