King Sejong was born on May 15, 1397 in Hansungbu Junsubang (now located in Tongin-dong, Seoul) as the third son of King Taejong, the third king of the Joseon Dynasty, and became the fourth king of the Joseon Dynasty in 1418, when he was 22 years old.

King Sejong made many achievements during his reign of 31 years and six months until his death at the age of 54. In 1420 (the 2nd year of King Sejong's reign), Jiphyeonjeon Hall was established to cultivate promising talents and to promote learning to maintain the rituals and systems underlying Confucian Politics.

The creation of Hunminjeongeum, the greatest achievement of the time, was also a result of King Sejong's desire to communicate with the people.

Through the fusion of Confucian Politics and independent culture, it brought great prosperity to Politics, economy, society and culture during the Joseon Dynasty.

Jeong Do-jeon (1342~1398) was a civil official, politician, Confucian scholar, and revolutionary during the late Goryeo and early Joseon Periods.

At the end of the Goryeo Dynasty, he criticized the corrupt Politics of the Gwon Mun-se people and the Buddhism that was parasitic on them, and made a key contribution to the establishment of the Joseon Dynasty, a centralized bureaucracy based on Neo-Confucianism.

As the first meritorious retainer and supreme power of the Joseon Dynasty, he laid the foundation for the 500th anniversary of the Joseon Dynasty by laying the foundation for the ideological foundation of the Joseon Dynasty, and named the buildings and streets of downtown Hanyang by himself.

Jeong Do-jeon, a revolutionary comrade of Yi Seong-gye, was killed by Bang Won (the third king of Joseon), the fifth son of Yi Seong-gye.