History Histoire 49 Social conditions 45 Politics and government 38 African Americans 33 Race relations 31 Indians of North America 25 more ... Ethnic relations 18 Quakers 17 Social life and customs 17 Society of Friends 17 Economic conditions 16 Frontier and pioneer life 15 Social aspects 15 Sources 15 Description and travel 12 Pioneers 12 Pennsylvania Dutch 10 Immigrants 9 Jews 9 Civilization 8 Civil rights 7 Free African Americans 7 Italian Americans 7 Minorities 7 Steel industry and trade 7 Causes 6 Government relations 6 Irish Americans 6 Working class 6 less ...