King Sejong the Great was the fourth king of the Joseon Dynasty in Korea, ruling from 1418 to 1450.
He is best known for his contributions to Korean culture and society, including the creation of the Korean script known as Hangul.
King Sejong also promoted scientific advancements, agricultural improvements, and social welfare reforms during his reign.
His reign is considered a pivotal period in Korean history, marked by his efforts to improve literacy and accessibility to information through the creation of Hangul, which played a significant role in shaping the Korean language and identity.