South Korea's Lee Dynasty was the last feudal dynasty to rule the Korean peninsula, and Li Tan was the fourth generation monarch, with the temple name Sejong. During the reign of Sejong, the economy, culture, agriculture and other aspects of the Korean Peninsula reached its peak, so it was often called "Korean Peninsula" by scholars who studied the history of the Korean Peninsula in later generations. King sejong? . Among many achievements, the most remarkable is the creation of proverbs. Although proverbs were only used by ordinary people at that time because of the limitations of the times, they were not orthodox, but the invention of proverbs laid the foundation for the development of Korean characters in later generations and had a far-reaching impact.

In his early years, King Sejong experienced that Li Ben was the third son of Li Fangyuan, Emperor Taizong of Korea, but neither of his two brothers was suitable as heirs. Li Ke, the eldest son of Emperor Taizong, was originally a prince. Because of his bohemian character and his lack of study, he was deprived of the monarch of Ning, and his second son, the monarch of Xiao Ning, later became a monk. However, Li Mei was studious and brilliant, in sharp contrast with her two brothers, so she was loved and reused by her father and was made a prince.

In politics, King Sejong's outstanding achievements strengthened centralization and improved the basic political system in the early dynasty. Economically, reduce taxes, pay attention to people's livelihood, spread farming techniques, distribute food and help the hungry. Militarily, on the one hand, develop new weapons, strengthen border defense and resist Japanese harassment; On the other hand, it expanded the territory of Jurchen and occupied a part of the Ming Dynasty. Culturally, the etiquette system has been formulated, and personnel have been organized to compose music. The emergence of proverbs laid the foundation and promoted the development of Korean characters. In terms of science and technology, astronomy, meteorology, medicine and printing technology have all developed to some extent.

In a word, Li Mian had a profound influence on the early development of the Korean dynasty and made outstanding contributions to the stability of the Korean dynasty. Later generations have great respect for him, so they often call him Sejong Li Mian? King sejong? . As we know, the Korean Peninsula, South Korea and North Korea have the same ancestors and culture, so Koreans also highly admire King Sejong.