The end of the Cold War enabled Ryan and Pitman to team up with oceanographers from Bulgaria and Russia, as well as Turkey, to explore the Black Sea. Using sound waves and coring devices to probe the sea floor, they discovered clear evidence that this inland body of water had once been a vast freshwater lake lying hundreds of feet below the level of the world's rising oceans. Sophisticated dating techniques confirmed that 7,600 years ago the mounting seas had burst through the narrow Bosporus valley, and the salt water of the Mediterranean had poured into the lake with unimaginable force, racing over beaches and up rivers, destroying or chasing all life before it. The margins of the lake, which had been a unique oasis, a Garden of Eden for an advanced culture in a vast region of semidesert, became a sea of death. The people fled, never to return.
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Could the people who fled the Black Sea Flood and their descendants have preserved for thousands of years the stories that became the myths we know today? Ryan and Pitman show how illiterate storytellers in our own century still recited tales thousands of lines in length that had been transmitted down through the ages with remarkable fidelity. So, they argue, the mythology of the Great Flood is an oral narrative, preserving the memory of a traumatic event -- the great divide in human history.