Middle class History 321 Social conditions 183 Economic conditions 96 Politics and government 71 Social life and customs 61 Social aspects 59 more ... Political activity 54 African Americans 38 Manners and customs 32 Civilization 30 Race relations 30 History and criticism 27 Working class 25 Social classes 24 Attitudes 23 Consumption (Economics) 20 Economic history 19 Economic policy 17 Women 17 Families 16 Books and reading 15 Economic aspects 15 Income distribution 15 Political aspects 15 Literature and society 14 Race identity 14 Capitalism 13 Democracy 13 Social change 12 less ...