The Dongguk Tonggam is a chronicle of early Korean history, compiled by Seo Geo-jeong (1420–1488) and other scholars in the 15th century. Originally commissioned by King Sejo in 1446, it was completed under the reign of Seongjong of Joseon, in 1485. The official Ch'oe Pu was one of the scholars who helped compile and edit the work. The earlier works on which it may have been based have not survived. The Dongguk Tonggam is the earliest extant record to list the names of the rulers of Gojoseon after Dangun.