History Histoire 1,070 Sources 645 African Americans 609 Emigration and immigration 568 Jews 536 Politics and government 513 more ... Biography 376 Description and travel 331 Societies, etc 317 History, Local 290 Bibliography 280 Social conditions 264 Germans 261 Periodicals 247 Social life and customs 238 Race relations 210 Indians of North America 187 Church history 182 German Americans 175 Ethnic relations 174 Ethnic groups 170 Religious life 169 Immigrants 155 Genealogy 147 Causes 139 World War, 1939-1945 129 Minorities 128 Education 127 Manuscripts 119 Italian Americans 117 Archives 116 Polish Americans 116 Economic conditions 113 Foreign relations 113 Irish Americans 113 Slavery 113 Labor unions 109 Civilization 106 Italians 105 less ...