Excavations on Tablet Hill uncovered tens of thousands of clay tablets inscribed with cuneiform, preserving the world's richest collection of Sumerian literary works, school exercises, lexical lists, and legal codes. Notable discoveries include the Sumerian Creation Myth and Flood Story, an ancient agricultural calendar with technical farming advice, and a detailed Kassite-period clay map of Nippur showing its walls, canals, and temples. For more: Nippur Archaeological Site