Politics and government 401 History 66 Social conditions 56 Foreign relations 42 International relations 42 Communism 36 Perestroĭka 29 more ... Heads of state 24 Economic conditions 21 Nationalism 21 Ethnic relations 20 Economic policy 19 Dissenters 18 Intellectual life 14 Purges 13 Jews 12 Revolutionaries 12 Minorities 10 Glasnost 9 Political persecution 9 Political culture 8 Political prisoners 8 Political purges 8 Political and social views 7 Political aspects 7 Socialism 7 Terrorism 6 Underground literature 6 World politics 6 Influence 5 less ...