Nearly 13,000 years ago, a catastrophic cosmic event wiped out millions of people and animals, plunging the world into a sudden ice age. Humanity struggled to survive.At Göbekli Tepe in present-day southern Turkey, the descendants of those who witnessed this devastation built a monumental stone sanctuary, encoded with symbolic carvings. These structures were not random decorations; they were a sophisticated record of a forgotten global catastrophe. Soon after, agriculture emerged, civilization began, and human history changed forever.In Prehistory Decoded, Dr. Martin Sweatman reveals how ancient people preserved scientific knowledge through monumental architecture and symbolic art. Drawing on evidence from archeoastronomy, the Younger Dryas impact hypothesis, and coherent catastrophism, he shows how early civilizations recorded celestial cycles, solstices, precession, and cosmic threats long before modern science.This groundbreaking book explores:The astronomical significance of Göbekli Tepe and Karahan Tepe The origins of the zodiac and ancient constellationsHow early proto-writing encoded cosmic knowledge The real meaning behind ancient symbols and cave art Why myths of floods and destruction are rooted in real eventsFrom the Lion-Man of Hohlenstein-Stadel to the Great Sphinx of Giza, this book deciphers a hidden code embedded across ancient cultures worldwide. A code that reveals humanity has faced cosmic disasters before and may face them again.Prehistory Decoded challenges conventional views of history and exposes a far more dangerous ancient world than we've been taught. It is a compelling, evidence-based exploration of the true origins of civilization, early science, and humanity's long memory of cosmic catastrophe.