Kim Busik, an official and a scholar during Korea's Goryeo period, is best known for compiling the Samguk Sagi, the oldest extant record of Korean history.

Written in Classical Chinese (the written language of the literati in traditional Korea), its compilation had been ordered by Goryeo's King Injong (r. 1122-1146) and undertaken by Kim and a team of junior scholars, it is completed in 1145.

The work’s fifty volumes form the historical record of the Three Kingdoms of Korea: Goguryeo, Baekje and Silla.