Kim Busik completes the Samguk Sagi

Timeline

1. c. 1141–1145Gaesong · GoryeoAfter suppressing the Myocheong rebellion, Kim Busik served as the highest civil official, and King Injong ordered him to lead the official compilation of a history of the Three Kingdoms. The work aimed to integrate Goguryeo, Baekje, and Silla sources using the Central Plains biographical-history format and to address Goryeo's legitimacy and Chinese-barbarian discourse in the twelfth century.
2. 1145Gaesong · GoryeoThe book was finished in the 23rd year of Injong, comprising basic annals, chronological tables, treatises, and biographies in fifty volumes. It is the earliest surviving complete official history of the Korean Peninsula, and for long afterward the narrative of the peninsula's ancient history was built around it.