The Chinese Civil War between Kuomintang-led government of the republic of China and the Communist Party of China, which lasted from 1927-1950. It's result was the victory of the Communist Party, this was the main reason to the start of the Chinese Communist Revolution.
The society had two extremely opposite ends of social class. The peasants who were always working hard just to survive from day to day, and there were the lords. The lords lived luxurious lives and had total authority over the lives of peasants.
Foreign Imperialist powers were wrecking the Chinese culture and economy. The Chinese people were suffereing while the Imperialist countries were taking authority over most spheres in China using military, political, economic and cultural means of opression, so that China gradually became a semi-colony and a colony.