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He made 내불당 at Gyeong-bokgung-Palace and he tried to development Buddhism.He made brilliant culture.

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Fourth king of Joseon Dynasty(20431 정지민)

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Fourth king of Joseon Dynasty(20431 정지민)

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His name Lee-do, Taejong's third son. King Saejong became king at the age of 22 in the 8th lunar month and he left many achievements.

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king Sejong also had a good eye.

for example he found many Talented person such as 장영실, 이순지 and 황희

Representatively, 장영실 made 자격루, 혼천의, 앙부일구 and 간의

and these Inventions helped the peoples of choson.

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King Sejong decided to create a new language after seeing Joseon, which had no native language unlike other countries, and the people who can't read. King Sejong studied the sounds of speech and made letters, and he wrote Hunminjeongeum with scholars in Jiphyeonjeon. Finally, Hunminjeongeum was distributed to the people.

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The Hunminjeongeum was distributed.(20416 강보민)

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The Hunminjeongeum was distributed.(20416 강보민)

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After Hunminjeongeum was distributed, Hunminjeongeum was tested when some officials were selected.
Also, Hunminjeongeum has been used in some of the documents translation.

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king sejong and his people Representatively, developed cannons(화포)

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Medical institution organized by King Sejong.He development medicament perfume for medical activity rationalization.Also King Sejong improvement jail facilities because he worried prisoner's health.

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Jiphyeonjeon was established by King Sejong of the Joseon Dynasty. It was also in the Goryeo Dynasty, but it wasn't well used, and in 1420, King Sejong made it for substantive academic research institution. Sejong gives many books to the development of culture to scholars of Jiphyeonjeon , giving them consideration to concentrate on studying, and creating Hunminjeongeum and other books.