Hu Jintao denounced during the Cultural Revolution, an event that (together with his relatively humble origins) apparently had a deep effect upon Hu, who diligently tried to clear his father's name. He joined the Communist Party of China (CPC) in April 1964 and began to work as an engineer in July 1965 after he graduated from the Water Conservancy Engineering Department at Tsinghua University, where he majored in the study of hub hydropower stations. During his time at Tsinghua, he met his wife Liu Yongqing. In 1968, Hu volunteered for his service in Gansu and worked on the construction of Liujiaxia Hydroelectric
Hu Jintao Hu effectively the number-one figure in the vast, restive region. A number of Tibetans have long been opposed to government policy in the region. Unrest and ethnic conflict were brewing, particularly anti-Han sentiments among segments of ethnic Tibetan society. Minor clashes had been occurring since 1987, and when the scale of unrest grew, Hu responded with the deployment of some 1,700 People's Armed Police into Lhasa in February 1989 in an attempt to warn against further disturbance. Increased clashes culminated in serious rioting in Lhasa's core on 5 March 1989, five days before the 30th anniversary of the 1959 Tibetan