: He noted the existence of similar plants (like corn and tobacco) and animals on both sides of the Atlantic, suggesting they were once connected.
: A large island in the Atlantic Ocean where humanity first transitioned from barbarism to civilization. Atlantis The Antediluvian World
The book appeared during a period of rapid industrialization and social unrest in the U.S.. For Donnelly, the fall of Atlantis served as a cautionary tale: a perfect society that collapsed due to corruption and pride, mirroring his anxieties about the American Gilded Age . : He noted the existence of similar plants