Politics and government Heads of state 21 History 19 Revolutionaries 12 Political prisoners 6 Dissenters 5 Statesmen 5 more ... Communism 4 Political and social views 4 Social conditions 4 Assassination 3 Dictators 3 Foreign relations 3 Human rights workers 3 Influence 3 International relations 3 Political culture 3 Political persecution 3 Political refugees 3 Presidents 3 Authors, Russian 2 Friends and associates 2 Intellectuals 2 Jews 2 Philosophy 2 Physicists 2 Politicians 2 Psychology 2 Radicalism 2 Revolutions 2 less ...