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Born in 1397
Reign: September 9, 1418

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King Saejong the Great expelled the Rujin people and expanded the territory to the Yalu River.

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Sejong installed the Jikhyeonjeon Hall so that young scholars could immerse themselves in academic research.

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It is the oldest book in existence among the farm books describing the establishment of farming.

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 King Sejong made Hunminjeongeum hard with his servants for the people.

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Sejong declared that it was Hoon Min-jung to make life easier for the people.

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Death: March 30, 1450

The king died of diabetes.