Samguk Sagi (삼국사기, 三國史記, History of the Three Kingdoms) is a historical record of the Three Kingdoms of Korea: Goguryeo, Baekje and Silla. The Samguk Sagi is written in Hanja (the written language of the literati in traditional Korea) and its compilation was ordered by Goryeo's King Injong (r. 1122-1146) and undertaken by the government official and historian Kim Busik (金富軾) and a team of junior scholars. It was completed in 1145. It is well known in Korea as the oldest surviving chronicle of Korean history.