Working class History 300 Social conditions 143 Economic conditions 75 Labor movement 64 Labor 57 Politics and government 55 more ... Political activity 54 Labor unions 53 Dwellings 44 Social aspects 35 Poor 34 Social life and customs 31 Social classes 28 Education 27 Industrial relations 25 African Americans 21 History and criticism 21 Housing 20 Race relations 17 Economic policy 16 Socialism 16 Immigrants 15 Intellectual life 15 Tenement houses 15 Economic aspects 14 Employment 14 Women 14 Capitalism 11 Communism 11 less ...