Atlantis: The Antediluvian World (1882) By: Ignatius Donnelly: Illustrated....Ignatius Loyola Donnelly (November 3, 1831 - January 1, 1901) was a U.S. Congressman, populist writer, and amateur scientist.

Atlantis: The Antediluvian World is a book published in 1882 by Minnesota populist politician Ignatius L. Donnelly, who was born in Philadelphia, Pennsylvania in 1831. Donnelly considered Plato's account of Atlantis as largely factual and attempted to establish that all known ancient civilizations were descended from this lost land.Many of its theories are the source of many modern-day concepts about Atlantis, including these: the civilization and technology beyond its time, the origins of ...