The inauguration of the People's Republic, known in Chinese as Kaiguo dadian (开国大典), by Mao Zedong on Saturday 1 October 1949, the Gate of Heavenly Peace (Tiananmen Gate) in Beijing. Liu Yuyi and Liu Haomei included as many people as possible in the picture.

The original painting of 7.30x2.80 m. was on display in the central hall of Tian'anmen Gate Tower.