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Events on Thursday 25 September 1513 1
1513Balboa Sights the Pacific OceanSpanish explorer becomes the first European to see the Pacific from the AmericasVasco Nunez de Balboa led an expedition across the Isthmus of Panama and sighted the ocean he named Mar del Sur, the Pacific Ocean. The crossing gave Europeans their first direct knowledge of a separate ocean beyond the Americas, reshaping ideas about world geography. Balboa claimed the sea and its shores for the Spanish crown.