Hamlet's Mill (1969) by Giorgio de Santillana and Hertha von Dechend argues that ancient myths are a sophisticated technical language encoded by prehistoric civilizations to record astronomical data, specifically the precession of the equinoxes. The authors propose that myths involving "milling" represent the shifting of the celestial axis, using global, cross-cultural symbols to suggest a shared, archaic scientific understanding. For a detailed summary of the book's claims, visit Louis Wolf .