The Workers' Party of Korea was established on June 30, 1949 by Kim Il-sung as its leader. The Communist Party of Korea was established on April 25, 1925, based in Seoul. The first secretary of the Communist Party of Korea was Kim Yong-bom. On 30 June 1949, the Workers' Party of Korea was formed based on the merger between the Communist Party of Korea and the new Democratic Party of Korea.