Today, 82 years ago, on March 20, 1943 (February 15, 1943 in the lunar calendar), Mao Zedong became the real leader of the Chinese Communist Party. Mao Zedong, who became the chairman of the Secretariat of the CPC Central Committee. On March 20, 1943, the Political Bureau of the CPC Central Committee held a meeting. The meeting decided that the Secretariat of the CPC Central Committee would be composed of Mao Zedong, Liu Shaoqi and Ren Bishi. Mao Zedong was the chairman of the Political Bureau of the CPC Central Committee and the Secretariat of the CPC Central Committee, and concurrently the president of the Central Party School. The meeting adopted the Decision on the Adjustment and Streamlining of the Central Organs, which stipulated that the Secretariat "may be convened by the Chairman at any time for an irregular session, and the Chairman has the power to make the final decision on the issues discussed at the meeting." In this way, the CCP achieved a high degree of centralization of power. This meeting completely completed the correction of Wang Ming's "Left" mistakes and the establishment of Mao Zedong's leadership position in the whole party since the Zunyi Conference, and the Central Secretariat (Mao Zedong, Zhang Wentian and Wang Ming) after the Sixth Plenary Session of the Sixth Central Committee. Kang Sheng, Chen Yun) members have been greatly adjusted.