On April 20, 1949, the People's Liberation Army began the Crossing-Yangtze River Campaign. The picture shows the wooden sailboat, which is called a "pioneer crossing the river boat". [Photo/ Exhibition Road to Rejuvenation at the National Museum of China]

On April 23, 1949, the People's Liberation Army occupied Nanjing, declaring the collapse of the reactionary Kuomintang rule. The picture shows the scene when the People's Liberation Army occupied Nanjing.[Photo/ "The Chinese Communist Party history," the first two volumes]

The picture shows a wooden sign, a calendar and Chiang Kai-shek's copper stamp in the presidential office in Nanjing. [Photo/Exhibition Road to Rejuvenation at the National Museum of China]