History 907 Politics and government 220 Social conditions 153 African Americans 151 HISTORY 136 SOCIAL SCIENCE 113 General 110 Race relations 93 Foreign relations 91 Diplomatic relations 87 Women 70 POLITICAL SCIENCE 68 Economic conditions 62 Histoire 60 Civil rights 55 Labor unions 49 Working class 49 History and criticism 43 Social aspects 43 Labor 42 Political activity 42 Asian Americans 41 Ethnic identity 39 Slavery 38 State & Local 37 Emigration and immigration 34 Intellectual life 34 BUSINESS & ECONOMICS 31 Politique et gouvernement 31 Indians of North America 30