Of course the ancient phoenicians knew that the Strait of Gibraltar was not obstructed when Atlantis went under, as they aggressively plied the waters of the Atlantic ocean from the Mediterranean sea to even the Americas (search engine Phoenicians Evidence Americas) during the iron and bronze age (which was the ice age), the myth of the obstruction of the strait perpetrated by the phoenicians and their allies to protect their monopoly of the shipping and trade lanes to the west. And reading Plato’s dialogue with Timaeus, you can see that many at that classical Greek time were aware of the Americas, no doubt learned from the phoenicians. This from Timaeus about the western ocean:
Reference from Plato’s Timaeus: “From those islands (Canaries and Teneriffes) one could then travel to the entire continent on the other side, which surrounds the real sea beyond. Everything here inside the strait (Gibraltar or Pillars of Hercules) we’re talking about seems nothing but a harbor (Mediterranean) with a narrow entrance (Strait of Gibraltar), whereas that really is an ocean out there and the land that embraces it all the way around truly deserves to be called a continent.”
So considering the ancient mapping method explained in article #2 at http://iceagecivilizations.com, could it be more obvious that Christopher Columbus was certainly not the first to have travelled to the Americas by sea? After all, with the Maps of the Ancient Sea Kings (Hapgood), which are medeival maps sourced from ancient and often ice age maps based on the rate-of-the-earth’s precession mapping method (explained in the link), it’s obvious that the Americas were mapped over three thousand years before Columbus. And so why is this not discussed in our schools? It’s because it helps definitively shatter the darwinian paradigm, and lends much credence to the young earth creationism model, details about which you can study further at http://genesisveracityfoundation.com.