2. The image of Zhuge Liang entered Korea very early. According to the available information, it was probably during the Koguryo regime in the 6th century. Koguryo is a powerful empire in Northeast Asia, covering parts of Northeast China and the northern part of the Korean Peninsula. It took more than 700 years from its establishment in the first century to its demise in the seventh century. Koguryo's monarch attached importance to both education and military affairs, so he was very powerful in the northern part of China at that time. This can be seen from the process of several weightlifters going north to Koguryo for more than 70 years during the Sui and Tang Dynasties.
3. Emperor Koguryo attached great importance to education, and among the popular educational institutions in China, China classic ancient books became the official designated teaching materials. According to the records in the History of Koguryo in China, Koguryo used two classic China books as teaching materials: The History of the Three Kingdoms and Selected Works of Zhaoming. As we all know, The History of the Three Kingdoms was written in the Western Jin Dynasty at the end of the third century A.D., while The Selected Works of Zhaoming was written in the mid-1920s by Xiao Tong, the eldest son of South Liang Wudi, which lasted for five years.