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Yi To

Type Figure Region Korean Peninsula Time 1397–1450 Also known as Sejong

Yi To (1397–1450), fourth monarch of Joseon with temple name Sejong; created Hunminjeongeum (Hangul), founded Jiphyeonjeon, and advanced agrarian and…

Timeline

  1. 1411–1417Hanseong · Gyeonggi ProvinceThird son of Taejong, educated in Confucian classics from youth; by around 1411 he was studying the classics and histories in the palace, building knowledge for future rule; after his brother Prince Gwangpyeong died early in 1417, he became heir to the throne.
  2. 1418–1420Hanseong · Gyeonggi ProvinceAcceded to the throne in September 1418 after Taejong's abdication, retaining the Yongle era name; initially governed with the support of the retired king, reformed the administration, and in 1420 founded Jiphyeonjeon, recruiting scholars to compile texts, laying the foundation for Hunminjeongeum and scientific and cultural development.

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