History 270 African Americans 75 Politics and government 68 Social conditions 59 Race relations 52 Civil rights 25 Social aspects 24 more ... Political activity 19 Intellectual life 18 Economic conditions 15 Social life and customs 14 Political aspects 13 Regimental histories 13 Civil rights movements 11 History and criticism 11 Presidents 11 Ethnic relations 10 Legislators 10 Education 9 Governors 9 Lawyers 9 Migrations 9 Murder 9 Social reformers 9 American literature 8 Family 8 Friends and associates 8 Frontier and pioneer life 8 Jews 8 Law 8 less ...