Human history may be far older and more cyclical than standard textbooks suggest. Echoes of the Ancients presents the case that advanced civilizations flourished before the last Ice Age. William Sandy analyzes megalithic ruins like Giza and Puma Punku, where precision engineering appears to exceed the capabilities of early people. He links geological evidence of a comet impact with widespread flood myths preserved across distant cultures. The text examines submerged ruins and maps depicting geographical features long before their official discovery. Sandy asks if sophisticated astronomical and mathematical knowledge was inherited from earlier survivors. This research combines archaeology and mythology to challenge established timelines. It prompts a fundamental rethink of our origin story.