What Atlantis? Plato wrote a fictional story which was later picked up by the likes of Jules Verne. What did, however exist was Doggerland: Between 10,000 and 7,000 years ago, Doggerland was inundated by rising sea levels, disintegrating initially into a series of low-lying islands before submerging completely. Evidence of human civilizations has been found in the area now flooded. Evidence of Neanderthal presence was found. Let’s see that map again: