Analyzing and comparing both well-known and completely new facts for readers from different fields of knowledge (mythology, ancient maps, pyramids, geology, natural disasters), the author, as always logical and convincing, paints an amazing picture: 12 thousand years ago there was a developed civilization on Earth with technologies of the 18th century level. And disappeared - due to a global catastrophe. Knowledge was lost, only random "embers from the torch of reason" remained. And humanity learned everything again...