History 305 America 170 United States 131 Africa 125 African Americans 95 Literature 95 African literature 85 History and criticism 83 Foreign relations 63 African literature - fiction 61 Latin America 60 American literature 58 Politics and government 55 Indians of North America 53 American Linguistics 52 Social conditions 51 Mathematics 47 Philosophy 47 Women 44 Economics 43 Social Sciences 42 African Americans in literature 41 South Africa 39 Government 38 Economic development 37 Race relations 37 Feminism 36 American fiction 35 Novel 35 Economic conditions 34