In this research paper the author analizes the meaning and historical importance of Cristobal Colon’s arriving to the New World on October 12, 1492, a fact Known by World Historiography as “America’s Discovery” at the same time he explains how the “Discovery” was as a Matter of fact an “historical accident”, owned to the luck because the Colon’s adventure was organized to go to the eastern Indias and not to a territory called after that as America. But the notron of discovery was necessary to justify, in a religious, ethica, political and legal way the dispossesion and exploitation of men and people, by the european invader. Because of that, the New historiographic thesis reject the notion of discovery because of the colonialist content of it.