Black Sea Flood: how a freshwater lake became the Black Sea
Around 5600 BC The Black Sea was in much more modest borders than it is now. According to the theory of American geologists Ryman and Pitman, the Black Sea was previously a freshwater lake, but then, due to earthquakes, the Mediterranean Sea formerly connected to the Black Sea, which quickly became filled with salty sea water.
The level of the Black Sea rose to 140 meters - at the same time the Sea of Azov arose, and instead of the modern Bosporus, an endless giant waterfall flowed, 200 times larger than the Niagara water flow.
Of course, the 1.5 times increase in the volume of the Black Sea led to the immediate flooding of the huge coastal zone. It is possible that this event was the basis for the Flood myth in many cultures. Some historians also associate the Platonic tale of Atlantis with the Black Sea spill. In any case, the Black Sea flood caused a full-scale migration of peoples.
Despite criticism of this theory, the famous marinologist Ballard in 2000 confirmed the guesswork of geologists by examining the ancient coastlines of the Black Sea. Using radiocarbon analysis of mollusks and the study of changes in sedimentary rocks and species of aquatic plants, scientists concluded that about 7,500 thousand years ago the Black Sea was absolutely fresh.