The Younger Dryas Extinction: What Really Killed the Advanced Ancients?

Around 12,800 years ago, a catastrophic cosmic event is believed by some researchers to have devastated an advanced ancient civilization, triggering the Younger Dryas ice age and forcing survivors to rebuild from scattered remnants. According to this theory, comet fragments struck the North American ice sheet, unleashing massive floods, widespread fires, and dramatic atmospheric disruption that reshaped life on Earth.