Flat earth

The Flat Earth Theory is a myth used to impugn pre-modern civilization, especially that of the Middle Ages in Europe. The allegation is that people in some past era believed that the world was flat and that those sailing too far would go off the edge. This legendary belief-system is frequently ascribed to the Catholic Church, especially in the time of Christopher Columbus. The attack is often validated by being linked to the genuine controversy over the geocentric and heliocentric models of the cosmos (see History of astronomy, Ptolemy (2), and Copernicus. Both sides of that had no doubt that the world was a sphere: the diameter of the world had even been calculated quite accurately by Eratosthenes? in the 3rd century BC.

However, there is little or no evidence that anyone ever believed that the world is flat, and no evidence that educated people ever did so. [Jeffrey Burton Russell]?, an American scholar whose main contribution to historical scholarship is a series of books on the history of concepts of evil and ideas of Satan, explored the issue in his Inventing the Flat Earth: Columbus and Modern Historians. Russell discovered that a series of 19th century popular historians and serious historians invented and perpetuated this legend in the face of overwhelming evidence to the contrary.

Russell, Inventing the Flat Earth (ISBN 027595904X (amazon.com, search)).

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