September 3, 1952 (Imjin July 15), the Yanbian Korean autonomous regions established. In In in 1952, the inaugural meeting of China's Yanbian Korean autonomous regions in Yanji City, Jilin Province. In April 1955, the CPC Jilin Provincial Committee and Jilin Provincial Government decided to change the Yanbian Korean autonomous regions for the Yanbian Korean Autonomous Prefecture. In December of the same year, the second meeting of the first session of the People's Congress of the Yanbian Korean Autonomous Prefecture announced change the autonomous region for the Autonomous Prefecture.