Papal Bull Inter Caetera and the Treaty of Tordesillas (jan 1, 1493 – jan 1, 1494)

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Many people do not know that when Christopher Columbus "discovered" the Americas, they already legally belonged to Portugal. According to previous papal bulls of the 15th century, Portugal held claim to any and all undiscovered lands west of a certain longitude. After Columbus' return, both Spain and Portugal laid claims to the new lands, forcing the pope to sort things out. Pope Alexander VI issued the bull Inter Caetera in 1493, declaring that Spain owned all new lands west of a line 100 leagues (about 300 miles) from the Cape Verde Islands.

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