This topic re the various deluge myths, while interesting, really doesn't belong to the the general discussions thread, IMO. It should go to the off-topic forum, as it's not directly related to diet. Before doing that, here is a standard critique of the various great flood myths from wikipedia:-
"Deluge myth
From Wikipedia, the free encyclopedia
Hypotheses of origin of flood myths
The publication of The First Fossil Hunters by Adrienne Mayor, followed by Fossil Legends of the First Americans, have caused the hypothesis that flood stories have been inspired by ancient observations of fossil seashells and fish inland and on mountains to gain ground. Though the Greeks, Egyptians, Romans, and Chinese all commented in ancient writings about seashells and/or impressions of fish that they found inland and/or in the mountains, it was no less than Leonardo da Vinci who postulated that an immediate deluge could not have caused the layered and neatly ordered strata he found in the Italian Apennines. The Greeks hypothesized that the earth had been covered by water several times, and noted the seashells and fish fossils that they found on mountain tops as the evidence for this belief. Native Americans also expressed this belief to early Europeans, though they had not written these ideas down previously.[citation needed]
Some geologists believe that quite dramatic, greater than normal flooding of rivers in the distant past might have influenced the myths. One of the latest, and quite controversial, hypotheses of this type is the Ryan-Pitman Theory, which argues for a catastrophic deluge about 5600 BC from the Mediterranean Sea into the Black Sea. This has been the subject of considerable discussion and a news article from National Geographic News in February 2009 reported that the flooding might have been "quite mild".[22]
There has also been speculation that a large tsunami in the Mediterranean Sea caused by the Thera eruption, dated ca. 1630–1600 BC geologically, was the historical basis for folklore that evolved into the Deucalion myth. However, the tsunami hit the South Aegean Sea and Crete; it did not affect cities in the mainland of Greece such as Mycenae, Athens, and Thebes which continued to prosper, therefore it had a local rather than a regionwide effect[23].
Another theory is that a meteor or comet crashed into the Indian Ocean in prehistoric times around 2800-3000 BC, created the 30-km undersea Burckle Crater and generated a giant tsunami that flooded coastal lands"
