Title: Yŏngjo, Sado Seja, Chŏngjo, kŭdŭl ŭn wae?
Subjects: Kings and rulers, Psychology, History, Psychoanalysis
Places: Korea
People: Changhŏn Seja (1735-1762), Yŏngjo King of Korea (1694-1776), Chŏngjo King of Korea (1752-1800)
Time periods: Chosŏn dynasty, 1392-1910