History 18 Capitalism 13 Socialism 13 Politics and government 7 Social conditions 6 Communism 5 Political aspects 5 American poetry 4 Marxian economics 4 Public opinion 4 Social aspects 4 African American authors 3 African Americans 3 Economic aspects 3 Economic conditions 3 Emigration and immigration 3 Feminism 3 Influence 3 Islam 3 Labor movement 3 Labor unions 3 Revolutions 3 Revolutions and socialism 3 Women 3 Women authors 3 African American women 2 Anti-imperialist movements 2 Civil rights 2 Civilization 2 Economic development 2