History Labor unions Working class 32 Labor and laboring classes 29 Labor movement 27 Labor 18 Coal miners 14 more ... Social conditions 9 Histoire 8 Employment 7 Strikes and lockouts 7 Syndicats 7 Labor leaders 6 Afro-American membership 5 Biography 5 Railroads 5 African Americans 4 Officials and employees 4 Polish people 4 Agricultural laborers 3 Coal mines and mining 3 Employees 3 Gewerkschaft 3 Jews 3 Labor laws and legislation 3 Politics and government 3 Race relations 3 Socialism 3 Societies, etc 3 Sources 3 Textile workers 3 Cigar industry 2 Cigar makers 2 Clothing trade 2 Clothing workers 2 Conditions sociales 2 Discrimination in employment 2 Economic conditions 2 Emigration and immigration 2 Ethnology 2 less ...