15h 53min, mar 9, 1454 y - amerigo vespucci
Description:
 was an Italian explorer, financier, navigator and cartographer who first demonstrated that Brazil and the West Indies did not represent Asia's eastern outskirts as initially conjectured from Columbus' voyages, but instead constituted an entirely separate landmass hitherto unknown to people of the Old World. 
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Date:
15h 53min, mar 9, 1454 y
Now
 ~ 572 years ago