Radicalism 603 Fiction 302 Poetry 56 Drama 44 History 37 Socialism 22 Jews 20 more ... Labor and laboring classes 20 Politics and government 18 Strikes and lockouts 14 History and criticism 12 Utopias 11 African Americans 10 Social conditions 9 Irish fiction 8 Political activity 8 Communism 7 American literature 6 Biography 6 Irish 6 Literary collections 6 Radicals 6 Social problems in literature 6 Authors, American 5 Radicalisme 5 Working class 5 American poetry 4 Anarchism 4 Coal miners 4 Ethnic groups 4 Italian Americans 4 Jewish radicals 4 Philosophy 4 Polish people 4 Proletariat 4 Social problems 4 Socialists 4 Theater 4 World War, 1939-1945 4 American drama 3 less ...