This work investigates the hypothesis that extraterrestrial visitors influenced the development of early human civilizations and religious structures. The author, a prominent figure in the mid-twentieth-century ufology movement, synthesizes various archaeological anomalies and mythological accounts to argue that ancient humanity possessed knowledge derived from contact with advanced space-faring beings. The text relies on a comparative analysis of global myths and architectural feats to support the claim that these visitors were interpreted as gods by early societies.

This book represents a foundational text within the ancient astronaut theory genre, reflecting the speculative ufology discourse of the 1970s. The material is best approached as a historical artifact of fringe science rather than a peer-reviewed archaeological study.