 The Lelang Commandery was, according to the "Book of Han", composed of 27 districts and had a population of over 406,748 people.Located on the Taedong River at the approximate location of modern Pyongyang, archeological evidence suggests that the seat of the commandery had been moved to this district here after the destruction of Wanggeom-seong, the old Koguryo capital at Pyongyang and is claimed to have been original seat of the lelang commandery.During the Japanese colonial period, the area was part of Taedong County.