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 the local students protest parallel to the Democracy Wall carefully, whereas in Beijing similar protests resulted in Hu Yaobang's forced resignation. Hu Yaobang was purged in the late 1980s due to his 'liberal' tendencies towards systemic reform, and his departure from the political scene was initially seen as unfavourable towards Hu Jintao. Hu Jintao drew criticism from party elders for failing to criticize the ousted reformer. In 1988, Hu was transferred to become Party Regional Committee Secretary of the Tibetan Autonomous Region, while also taking on the role of Political Commissar of the local People's Liberation Army units. This made