Long before he appeared as the immortal sage at the edge of the world in the Epic of Gilgamesh, Utnapishtim was a real mortal king. This deep dive starts with the antediluvian king lists that name him the eighth ruler of Shuruppak around 2900 BC and the excavated flood layer at that site, a thick alluvial deposit that seals one era of Mesopotamian civilization off from the next. It then follows his shifting names, from the Sumerian Ziusudra to the Akkadian Atrahasis to the Babylonian Utnapishtim, as each empire rebranded the survivor to reflect its own values.

The episode examines the divine decree to wipe out humanity, Enki's secret warning, and the engineering nightmare of the Preserver of Life, a sealed 200-foot cube with seven floors and no steering, loaded with family, animals, grain, and the craftsmen whose skills were considered gift ...