Miscalculation of Global Proportions led Columbus to attempt a a westward voyage - American Minute with Bill Federer
W.L. Grant continued in the introduction of The Voyages
and Explorations of Samuel de Champlain (1911, The Courier Press, A.S. Barnes Co.): "In the search for these were made the three greatest voyages in history, those of Columbus, of Vasco da Gama, and greatest of all of Magellan. In his search for the riches of Cipangu, Columbus stumbled upon America. The great Genoese lived and died under the illusion that he had reached the outmost verge of Asia; and though even in his lifetime men realized that what he had found was no less than a new world."