Title: Sverkhsekretnai͡a istorii͡a Bolʹshogo terrora
Subjects: Politics and government, Opposition (Political science), Purges, Political purges, State-sponsored terrorism, Political science, Soviet Union. Obʺedinennoe gosudarstvennoe politicheskoe upravlenie, Soviet Union, Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza
Places: Soviet Union
Time periods: 1917-1936