In 1492 Columbus sailed the Ocean Blue? He discovered America right? Nope? Some persons will immediately jump down your throat and correct you with self-righteous indignation and declare that Lief Erikson is the rightful discoverer of America! But then what about the Indigenous peoples already living there?
But back to 1492. Well, Columbus did awaken the Eastern Hemisphere unto the Western Hemisphere, certainly it was a rediscovery or complete awakening of the Old World to New World, rather than the discovery of America, which he believed was Asia unto his dying day.