Wiman
Refugee leader from Yan who ousted King Jun and took the throne of Gojoseon
Amid the chaos between the Qin and Han dynasties he arrived in Gojoseon with about a thousand followers, wearing a topknot and "barbarian" dress. King Jun trusted him to guard the western frontier, but Wiman gathered the migrants and around 194 BCE attacked Wanggeom Fortress and seized the throne. He kept the name Joseon and gave high posts to local people, so his state is seen as a continuation of Gojoseon. Iron culture spread widely under Wiman Joseon, which grew rich as a middleman in trade between Han and the Jin states to the south. Accepting the status of an outer vassal of Han, he subjugated the neighbouring Jinbeon and Imdun.