Chief minister turned teacher whose Nine-Course Academy led the private schools; called the "Confucius of the East"
His Nine-Course Academy, known as Munheon-gongdo, became the most prosperous of the Twelve Private Academies in Gaegyeong. As students flocked to private academies run by former examiners, state schools such as the Gukjagam declined, which later prompted the efforts of Sukjong and Yejong to revive official education.
When the retired chief minister Choe Chung opened his Nine-Course Academy, twelve private schools flourished; as state schools declined, later kings revived them.
Eleventh king of Goryeo, whose reign marked the height of the dynasty; father of Uicheon
Sixteenth king of Goryeo, who sent Yun Gwan to build the Nine Forts and revived state schooling
From the Taehak and Gukhak to the Gukjagam and Seonggyungwan, modern schools and the colonial education ordinances — state schools that trained officials and the private schools that filled the gaps
From Wang Geon, lord of Songak, to the Kaesong Industrial Complex — Gaegyeong, Goryeo’s capital for five centuries, and home of the Song merchants