Labor movement History 54 Labor unions 44 Working class 23 Political activity 13 Industrial relations 9 Labor 9 more ... Employment 6 Labor laws and legislation 4 Politics and government 4 Social conditions 4 Strikes and lockouts 4 African American labor union members 3 Forecasting 3 Foreign relations 3 Foreign workers 3 International relations 3 Labor policy 3 Organizing 3 African Americans 2 Civil rights 2 Coal miners 2 Coal mines and mining 2 Economic conditions 2 Employees 2 Income distribution 2 Labor leaders 2 Mexican Americans 2 Minorities 2 Race relations 2 less ...