Adapa by Wikipedia

Adapa was a Babylonian mythical figure who unknowingly refused the gift of immortality. The story is first attested in the Kassite period (14th century BC).

Adapa was a mortal from a godly lineage, a son of Ea (Enki in Sumerian), the god of wisdom and of the ancient city of Eridu, who brought the arts of civilization to that city (from Dilmun, according to some versions). He broke the wings of Ninlil the South Wind, who had overturned his fishing boat, and was called to account before Anu. Ea, his patron god, warned him to apologize humbly for his actions, but not to partake of food or drink while he was in heaven, as it would be the food of death. Anu, impressed by Adapa’s sincerity, offered instead the food of immortality, but Adapa heeded Ea’s advice, refused, and thus missed the chance for immortality that would have been his.

Adapa is often identified as advisor to the mythical first (antediluvian) king of Eridu, Alulim. In addition to his advisory duties, he served as a priest and exorcist, and upon his death took his place among the Seven Sages or ApkallÅ«. (Apkal, “sage”, comes from Sumerian Abgallu (Ab=water, Gal=Great, Lu=man) a reference to Adapa, the first sage’s association with water.)

Some scholars suggest the Abgallu were seafarers aboard a ship from the Indus River Valley/Mohenjo Daro civilization comparable in age to ancient Sumer and has some identified parallels to the Sumerian knowledge base (like Base-5 mathematics, irrigation systems/water management engineering and mud-brick cities)