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Emperor Sejong creates an Korean alphabet that is independent from the Chinese. This advocates Korean independence from China.
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Joan of Arc also known as, the "Maid of Orléans is a symbol of French patriotism. She was a peasant girl who said God spoke to her through visions. She led the French to a victory against the English at Orléans in the 100 years war. She was later captured by English troops, tortured, and burned at the stake in 1431.
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Mehmed II, sultan of the Ottoman Empire, conquered Constantinople and renamed the city Istanbul and made it the Ottoman capital.
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An agreement was made between Spain and Portugal moved the line west that determined the land each country could claim in the Atlantic. The original idea was authorized by Pope Alexander VI.
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The Incas created an empire that stretched across most of the western coast of South America. The capital was Cuzco, and they had established the largest road system since the Romans.