Hapgood concluded that they were made from far older ones from ancient archives around the world, now lost. Not only were these unknown people better mapmakers than people prior to the 18th century, it appears they mapped all the continents, including Antarctica, when its coasts were free of ice. Cataclysmic Pole Shift Geology, by Charles Hapgood. Hapgood researched Antarctica, ancient maps and the geological record to conclude that the Earth's crust has slipped on the inner core many times in the past, changing the position of the pole. Packed with illustrations, this is the sourcebook for many other books on cataclysms and pole shifts.
Natural catastrophes are nothing new to planet Earth.
Even more disturbing is the evidence author G. Cope Schellhorn has marshalled and carefully sorted out for us that indicates our world is entering a dangerous period of accelerated earth changes that quite possibly threatens the survival of the human species itself.