From September 21 to 30, 1949, the First Plenum of the Chinese People's Political Consultative Conference (CPPCC) was held in Beijing, with the participation of various political parties, popular organizations, non-Party democrats and representatives from all walks of life. The CPPCC drew up a Common Program, which served as a provisional constitution. It elected a Central People's Government Council, with Mao Zedong as Chairman, and appointed Zhou Enlai Premier of the Government Administration Council and concurrently Minister of Foreign Affairs. On October 1, 1949, a grand ceremony inaugurating the People's Republic of China was witnessed by 300,000 people in Beijing's Tiananmen Square. On that day, Chairman Mao Zedong solemnly proclaimed the formal establishment of the People's Republic of China.