Yejong of Goryeo

King Yejong expanded the Gukjagam (National Academy) and established the Seodang (village schools) to promote Confucian learning. He invited scholars from Song China and increased the number of civil service examination passers, strengthening the scholar-official class.

Yejong sent multiple diplomatic missions to the Song dynasty to import books, art, and technology. These exchanges introduced Neo-Confucian texts and Chinese musical instruments to Goryeo, influencing Korean culture for centuries.