History 247 Social conditions 66 African Americans 40 Ethnic relations 34 Social life and customs 34 Race relations 31 Immigrants 25 Máis ... Politics and government 25 Economic conditions 24 Indians of North America 22 Manners and customs 21 Economic history 20 Art 18 Private collections 17 Civil rights 16 Law reviews 16 Antiquities 12 Art museums 12 Social aspects 12 Art collections 11 Architecture 10 Droit 10 Frontier and pioneer life 10 Law 10 Ojibwa Indians 10 Country life 9 Natural history 9 Racism 9 American literature 8 Description and travel 8 menos ...