History 4,550 Politics and government 1,488 Description and travel 1,071 Social conditions 863 Social life and customs 773 Manners and customs 492 Race relations 481 more ... Civilization 416 African Americans 412 Economic conditions 412 Antiquities 371 Foreign relations 329 International relations 329 Ethnic relations 260 Indians of North America 247 Indians of South America 245 Indians of Mexico 235 Jews 220 Mayas 220 Slavery 197 Religion 182 Frontier and pioneer life 175 Relations 163 Black people 159 Ethnicity 146 Intellectual life 143 Emigration and immigration 142 Ethnic identity 138 Colonies 132 Social aspects 132 less ...