History 18,402 African Americans 14,021 History and criticism 11,908 Race relations 6,642 American literature 6,387 American poetry 4,585 Civil rights 4,554 more ... Social conditions 4,161 Civil rights movements 3,234 Racism 3,229 Politics and government 2,675 American fiction 2,654 Authors, American 2,630 Americans 2,282 Intellectual life 2,166 Criticism and interpretation 1,991 Social aspects 1,927 African American authors 1,693 Social life and customs 1,592 Women authors 1,574 Slavery 1,483 World War, 1939-1945 1,357 African American women 1,223 Civilization 1,124 Political aspects 1,098 Sermons, American 1,098 In literature 1,080 Mexican Americans 1,046 Hispanic Americans 1,014 American drama 1,002 less ...