69 years ago today, on September 15th, 1956 (August 11th, 1956 in the lunar calendar), the Eighth National Congress of the Communist Party of China was held. On September 15, Mao Zedong delivered an opening speech at the 8th National Congress of the Communist Party of China, calling for "uniting all forces that can be united at home and abroad to strive for building a great socialist China." From September 15 to 27, 1956, the 8th National Congress of the Communist Party of China was held in Beijing. Mao Zedong delivered an opening speech, and Zhou Enlai made a report on the proposals of the second five-year plan for developing the national economy. The congress adopted documents such as the Constitution of the Communist Party of China and the proposal on the second five-year plan for developing the national economy. The meeting pointed out that the socialist system has been basically established in China; The main domestic contradiction is no longer the contradiction between the working class and the bourgeoisie, but the contradiction between the people's needs for rapid economic and cultural development and the current situation that the economy and culture can't meet the people's needs. The main task of the people of the whole country is to concentrate their efforts on developing social productive forces. Delegations from the Communist Party and Workers' Party from more than 50 countries were invited to attend the Eighth National Congress of the Communist Party of China. Li Jishen presented gifts to the congress on behalf of democratic parties and non-party democrats. Deng Yingchao, Executive Chairman of the Congress, received a ceremony on behalf of the Congress. On September 16, Deng Xiaoping delivered a "Report on Amending the Constitution of the Party" at the Congress. Delegates attending the Eighth National Congress of the Communist Party of China entered the venue