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 Yaobang implying that it would be unlikely that the party would pursue a dramatic programme of political reform in the near future. On 18 November 2005, The Communist Party officially celebrated the 90th anniversary of Hu Yaobang's birth with activities at the People's Hall (the date was changed to two days before it was officially scheduled). Around 350 people attended, including premier Wen Jiabao, vice president Zeng Qinghong, and numerous other Party officials, celebrities, and members of Hu Yaobang's family. It was rumored that Hu Jintao wanted to attend, but was prevented from doing so by other senior members of the