Ancient apolcaylpse
The Ancient Apocalypse hypothesis , popularized by Graham Hancock, proposes that an advanced, global ice-age civilization was destroyed by a cataclysm around 12,000 years ago, with survivors passing knowledge to hunter-gatherers. This idea suggests these survivors built monuments worldwide, including in the Americas, Africa, and Asia and memories of those events now passing into the realm of myth - eg Atlantis , see also Younger Dryas, pole shifts, solar events