This teacher resource guide is designed to enhance the reader's understanding of the earlier years of the People's Republic of China (PRC). Since its establishment on October 1, 1949, the PRC has undergone many political, economic, and social changes. The Chinese Communist Party (CCP) sent the Chinese People's Volunteer Army to fight in the Korean War, while urban and rural divide emerged as a serious social issue on the mainland. Mao launched anti-rightist campaigns and emphasized that the Chinese people engage in socialism on a daily basis. To develop China's economy, the CCP installed a series of Five Year Plans. In the late 1950s, the PRC experienced great difficulties both at home and abroad. Millions of Chinese were starving in the aftermath of the Great Leap Forward and the CCP's relationship with the Soviet Union quickly deteriorated after Stalin's death.