During its early phase, the capital of Gojoseon was located in Liaoning; around 400 BC, it was moved to Pyongyang, while in the south of the peninsula, the Jin state arose by the 3rd century BC.
I løbet af sin tidlige fase var hovedstaden i Gojoseon beliggende i Liaoning, omkring 400 f.Kr., og blev flyttet til Pyongyang, mens Jin-staten opstod på den sydlige del af halvøen i det 3. århundrede f.Kr..