The show I watched put for the thesis that the flood story came to the Israelites through Babylon. Who themselves heard it from the Sumerians. And that "Noah" was the King of Ur. Who washed out to sea on his trade barge with his family by a catastrophic flood of the Euphrates. And that he ended up somewhere in the Persian Gulf called Dilmum (they theorized that it might be Bahrain).
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