Goryeo Kingdom State System

Timeline

1. 918Songak (initial capital) · Goryeo KingdomWang Geon founded Goryeo, integrating the Later Three Kingdoms' forces and establishing a framework of joint rule by the royal house and the nobility, with central institutions managing military, administrative, and fiscal affairs.
2. c. 1011–1020Gaeseong · Goryeo KingdomKing Hyeonjong's reign reformed the Three Departments and Six Ministries as well as the censorate institutions, strengthening the civil service system and recruitment through the imperial examination; the state system stabilized and matured by the early eleventh century.
3. 1170–1270Gaeseong · Goryeo KingdomAfter the military coup, institutions such as the Dugam were established, with royal authority and the military regime sharing power; the state system underwent major adjustments yet maintained the Goryeo name and its basic administrative framework.