King Sejong put a lot of effort into the development of science and technology. He developed astronomical technology that accurately predicts the operation of the sun and moon through astronomical observation, and compiled and recorded knowledge of natural science, medicine, and agriculture in books. These efforts greatly helped the development of Joseon’s studies and science and technology at the time, and King Sejong is regarded as the king who led the heyday of Joseon.
Introduce King Sejong
King Sejong (1397-1450) was the fourth king of the Joseon Dynasty and ruled Joseon from 1418 to 1450. Even though King Sejong was not the oldest, he showed outstanding ability from an early age and was appointed to the crown prince and educated in various fields such as Confucianism, art, and science. As a result, King Sejong had excellent qualities in many disciplines.
A History of the Korean Language
Among the achievements based on King Sejong’s versatile abilities, the biggest reason why King Sejong made his name in history is the creation of Hangeul and Hunminjeongeum. In Joseon, where only Chinese characters were used at the time, due to the difficulty of Chinese characters, the aristocratic class could not receive education or express their unfairness in writing. In this situation, King Sejong invented Hangul (the name at the time of its creation was Hunminjeongeum) to make letters easier for ordinary people to read and write. Hangeul has a simple shape and easy pronunciation, making it easy for many people to learn and read and write in a short time. King Sejong’s creation of Hangeul greatly helped the development of Korean culture and education. Hangeul is the most scientific character in the world invented by a person named King Sejong and is still used by Koreans.
Achievements of King Sejong
Finally, King Sejong achieved many achievements in military aspects. Before King Sejong the Great, Joseon had replaced a country called Goryeo, but did not have all of Goryeo’s territory. King Sejong expanded Joseon’s territory by conquering the land of the former Goryeo Dynasty in the north, and the territory of Joseon has become the size of the Korean Peninsula, combining South and North Korea.
Finally, King Sejong achieved many achievements in military aspects. Before King Sejong the Great, Joseon had replaced a country called Goryeo, but did not have all of Goryeo’s territory. King Sejong expanded Joseon’s territory by conquering the land of the former Goryeo Dynasty in the north, and the territory of Joseon has become the size of the Korean Peninsula, combining South and North Korea.
