The popularity of alternative archaeology has grown in recent years due to the inability of conventional theories to explain unexpected discoveries within existing scientific paradigms. When Erich von Däniken published Chariots of the Gods? in 1968, the gap between mainstream archaeological thought and the existence of unexplained structures throughout the world was so great that the “ancient astronaut” theory seemed like the only possible explanation. In a similar way, Zecharia Sitchin’s interpretation of ancient Sumerian myths as prehistoric contacts with extraterrestrials was the only way to make sense of those myths.
The age and distribution of the sites that I discovered suggested another possibility: that the original structures at these sites might have been built by a previous, highly developed technological civilization that existed throughout the world tens of thousands of years ago or more. Instead of an exogenous (i.e., extraterrestrial) influence, perhaps an indigenous technological civilization evolved over the timeline of an earlier human migration out of Africa 200,000 to 300,000 years ago, much like we have during the last 70,000 years. If so, our ancestor’s past encounters with this older civilization could have been the source of ancient myths of powerful gods, lost continents, even Atlantis.