Title: Perestroika
Subjects: Perestroĭka, Politics and government, Research, International relations, Congresses, Gorbachev, mikhail sergeevich, 1931-2022, Perestroika, International relations, research, Russia (federation), politics and government, Soviet union, politics and government, 1985-1991
Places: Russia (Federation), Soviet Union
People: Mikhail Sergeevich Gorbachev (1931-)
Time periods: 1991-, 1985-1991