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A flood of biblical proportions more than likely really did occur around the time Noah built his ark, says one historian, and he has proof.

Robert Ballard, who famously found the wreckage of the Titanic in 1985 says there is a very real possibility that during Noah’s time period–about 12,000 years ago–massively iced-over lands collided with the sudden rising of the Mediterranean Sea, creating a wall of water which would have wiped out everything in its path with a force 200 times greater than that of Niagara Falls.

Ballard has been working on an underwater expedition to prove such a cataclysmic event occurred, and says he found an ancient shoreline 400 feet below the surface of the Black Sea. Carbon dating on shells discovered there prove there was an event powerful enough to bury the shoreline around 5,000 B.C., which is the time biblical scholars say Noah lived.

"It probably was a bad day," Ballard said. "At some magic moment, it broke through and flooded this place violently, and a lot of real estate, 150,000 square kilometers of land, went under."

The theory goes on to suggest that the story of this traumatic event, seared into the collective memory of the survivors, was passed down from generation to generation and eventually inspired the biblical account of Noah.

Noah is described in the Bible as a family man, a father of three, who is about to celebrate his 600th birthday when God called on him to build a massive ark and call two of every animal to escape the coming flood waters.