History 18 Politics and government 6 History and criticism 5 African Americans 4 Description and travel 4 Race relations 4 Travel 4 Children's poetry, American 3 Philosophy 3 Political prisoners 3 Social conditions 3 Architecture 2 Architecture, Domestic 2 Artists 2 Assassination 2 Authors, American 2 Authors, English 2 Campaigns 2 City planning 2 Civil rights 2 Colors 2 Criticism and interpretation 2 Diplomatic relations 2 Foreign relations 2 Frontier and pioneer life 2 Indigenous peoples 2 Intellectual life 2 Journalists 2 Kikuyu (African people) 2 Management 2