Between 1922 and 1925, Chen Duxiu served as chairman of the Central Executive Committee, but the name was changed in General Secretary of the Central Executive Committee in 1925. The post was first introduced in March 1943, when the Politburo decided to discharge Zhang Wentian as General Secretary. As his replacement, Mao Zedong, who had been the de facto leader of the party since the Long March, was named as Chairman of the Politburo of the CPC Central Committee. The seventh CPC National Congress introduced the post of Chairman of the Central Committee into the party constitution, and in 1956 the General Secretary was given the day-to-day management of the Party Secretariat. The Chairman was elected by the Central Committee in plenary session and had full powers over the Central Committee, the Politburo and its Standing Committee. The 1956 Party Constitution introduced the multiple Vice-Chairman post; since 1945, actual vice-chairmanship had been exercised by the Secretariat members. Liu Shaoqi was the highest-ranking vice-chairman from 1956 to 1966. The 1969 Party Constitution introduced the post of a single vice-chairman, in order to give more authority to Lin Biao as Mao's successor. The 1973 Constitution re-introduced the collective vice-chairmanship. In 1976, Hua Guofeng was named First Vice-Chairman of the Central Committee, a post previously held unofficially by Liu Shaoqi from 1956 to 1966; Zhou Enlai from 1973 to 1975; and Deng Xiaoping in 1975 in the capacity of "Vice-Chairman in charge of the day-to-day work of the Central Committee". The 1975 Chinese Constitution reinforced the influence of the party on the state. The Central Committee was placed before the National People's Congress. Article 15 made the Chairman the commander-in-chief of the People's Liberation Army. These changes were reversed by the 1982 Constitution of the People's Republic of China which placed the Party below the State and created a state CMC in parallel to the Party CMC. Although Hua Guofeng succeeded Mao as party chairmen, by 1978 he had lost power to vice chairman Deng Xiaoping, who was now acknowledged as the de facto leader of China. By the 1980s, the CPC leadership desired to prevent a single leader from rising above the party, as Mao had done. Accordingly, the post of Chairman was abolished in 1982. Most of its functions were transferred to the revived post of General Secretary. The party's last chairman, Hu Yaobang, transferred to the post of General Secretary.
