Why do flood stories appear in nearly every ancient culture on Earth—from Mesopotamia to India, Greece, China, and the Americas? Tonight’s History for Sleep documentary follows a haunting pattern: a warning, a vessel, seeds and animals preserved, a mountain landing, birds sent out, and a sacrifice after survival. Over and over again. We begin with the 1872 discovery that shocked Victorian London: a clay tablet from the Epic of Gilgamesh—older than the Bible—describing a flood story strikingly similar to Noah’s. From there, we trace the tradition back through Atrahasis and into Sumerian memory, where kings reign for impossible lengths of time “before the flood.” Then the mystery goes global. We compare flood traditions across continents and ask the hard question: is this coincidence… or a shared human memory? In the second half, we shift from myth to geology. We explore the end of the last Ice Age, when sea levels rose dramatically, coastlines vanished, and catastrophic events like tsunamis and meltwater pulses reshaped the human world. We visit drowned landscapes such as Doggerland, and we examine debates like the Black Sea flood hypothesis and the Younger Dryas climate shock. Finally, we address controversial alternative ideas—lost-civilization claims, Göbekli Tepe, and other “anomalies”—with a careful, skeptical lens. No hype. Just evidence, uncertainty, and the strange fact that the same story keeps returning. If you enjoy calm, story-driven deep history, consider subscribing. Comment where you’re listening from and what time it is there—reading those always makes this night-journey feel shared. Disclaimer: This documentary discusses myths, hypotheses, and ongoing scientific debates. It does not claim a single literal global flood covering the entire Earth within recorded history.