Mu

Mu is a lost continent introduced by Augustus Le Plongeon (1825–1908), who identified the "Land of Mu" with Atlantis. The name was subsequently identified with the hypothetical land of Lemuria by James Churchward (1851–1936), who asserted that it was located in the Pacific Ocean before its destruction. The place of Mu in both pseudoscience and fantasy fiction is discussed in detail in Lost Continents (1954, 1970) by L. Sprague de Camp.

Geologists state that the existence of Mu and the lost continent of Atlantis has no factual basis, and is physically impossible, as a continent can neither sink nor be destroyed in the short period of time asserted in the legends, folklore and literature about these places.