History 619 Politics and government 223 African Americans 176 Jews 167 Emigration and immigration 123 Race relations 102 Description and travel 91 more ... Social conditions 89 Foreign relations 86 Biography 76 Slavery 72 Periodicals 70 Histoire 66 Germans 61 Societies, etc 60 Social life and customs 59 Civil rights 55 Minorities 54 Civilization 50 Economic conditions 49 Immigrants 48 Religious life 47 Labor unions 45 Education 43 Travel 42 Italian Americans 39 Polish people 39 Congresses 36 Personal narratives 36 Communism 35 Italians 34 Politique et gouvernement 34 Sources 34 German Americans 31 World War, 1939-1945 31 Bibliography 30 Causes 30 Study and teaching 30 Irish 29 Irish Americans 29 less ...