: Known ancient civilizations (Egypt, Mexico, Peru, etc.) were colonies founded by Atlantean survivors who brought advanced knowledge of agriculture, metallurgy, and language.

: It was an instant bestseller, reaching its eleventh edition within its first few years.

: He claimed the Azores were the surviving mountain peaks of the sunken continent. Historical Context and Influence

Donnelly used a wide array of cross-disciplinary data—most of which has since been discredited by modern science—to build his case:

: He pointed to similarities in architecture (pyramids in both Egypt and Central America), customs, and symbols as proof of a common Atlantean origin.