Hall of Worthies
King Sejong the Great profoundly affected Korean history with his personal creation and introduction of hangul, the native phonetic writing system for the Korean language. Although it is widely assumed that King Sejong ordered the Hall of Worthies to invent Hangul, contemporary records such as the "Veritable Records of King Sejong" and Jeong Inji's preface to the "Hunminjeongeum Haerye" emphasize that he invented it himself.