Social conflict 117 History 17 Working class 16 Social classes 15 Social conditions 15 Politics and government 10 Case studies 9 Communism 7 Race relations 7 Social aspects 5 Industrial relations 4 Political sociology 4 Power (Social sciences) 4 Social problems 4 Sociology 4 Capitalism 3 Conflict management 3 Congresses 3 Economic conditions 3 Labor unions 3 Peace 3 Political activity 3 Revolutions 3 Socialism 3 Violence 3 Civilization, Modern 2 Class consciousness 2 Comparative government 2 Ethnology 2 Imperialism 2