Sŭngjŏngwŏn (Korea). Sŭngjŏngwŏn ilgi

Seungjeongwon ilgi (Korean: 승정원일기; Hanja: 承政院日記) or the Diaries of the Royal Secretariat are records created by the Seungjeongwon, one of the central political institutions during the Joseon period. They primarily document interactions between the king and various government departments. They were continuously written from the founding of Joseon until its fall. Today, the texts are managed by the Seoul National University Kyujanggak Institute for Korean Studies. They were written in Classical Chinese. The records are considered to be valuable historical sources, as they are detailed, extensive, and offer insights into the contemporary international affairs of East Asia. Alongside the Veritable Records of the Joseon Dynasty, they are considered to be among Korea's most important cultural assets. Currently, the records hold the designation of National Treasure No. 303 of Korea and were inscribed on UNESCO's Memory of the World Register in 2001.