History 31 Marxian economics 27 Politics and government 23 Socialism 8 Communism 6 Education 5 Economic conditions 4 History and criticism 4 Political aspects 4 Social aspects 4 Social conditions 4 Trade-unions 4 Women 4 Addresses, essays, lectures 3 Culture 3 Economic policy 3 Economics 3 Education and state 3 Masculinity (Psychology) 3 Political science 3 Politics and culture 3 Civilization, Modern 2 Communists 2 English literature 2 Fiction in English 2 Labor and laboring classes 2 Motion pictures 2 Political activity 2 Political culture 2 Populism 2