Ilseongnok

Ilseongnok or Diary of Self-examination is a daily record of events at court made in order that the monarch might reflect upon them, ostensibly towards better government. The extant record of the Ilseongnok covers the last 150 years of the Joseon dynasty, from 1760 (the 36th year of the reign of king Yeongjo) to the end of the Joseon dynasty in 1910. The Ilseongnok is a vital historical record, and along with the Joseon Wangjo Sillok, the Seungjeongwon ilgi, and the Bibyeonsa, constitute one of the primary historical sources for the study of the period.

It is the 153rd national treasure of Korea. It is listed in UNESCO's Memory of the World registry.