History of the Soviet Union (1985–1991)
Glasnost gave a greater freedom of speech to the citizens and allowed them to criticise the government - something they had never been allowed to do. The government reduced censorship and control on publication. The government set free many political prisoners. In January 1987, Gorbachev started a process of democratization of Soviet politics. In June 1988, Gorbachev started a process to reduce the control of the CPSU on the different parts of the government.