Politics and government History 228 Underground press publications 114 Civil rights 96 Protest movements 83 Politicians 82 Political activists 81 Counterculture 78 Vietnam War, 1961-1975 73 Social conditions 72 Prime ministers 70 Presidents 59 Heads of state 45 Statesmen 44 Student movements 42 Economic conditions 38 Foreign relations 38 Radicalism 38 Race relations 34 Social movements 29 Political activity 27 Political aspects 26 Congresses 25 Political science 21 Social life and customs 21 Socialism 20 Biography 15 Communism 15 Politique et gouvernement 15 Public opinion 15