History 38 Social conditions 30 Economic conditions 20 Politics and government 14 Social aspects 8 Women 8 Political activity 7 更多 ... Economic policy 6 Foreign economic relations 6 Chile saltpeter industry 5 Social policy 5 Working class 5 Youth 5 City planning 4 Social movements 4 Violence 4 Commerce 3 Criminals 3 Economic aspects 3 Happiness 3 Labor movement 3 Labor unions 3 Political prisoners 3 Rehabilitation 3 Urbanization 3 Well-being 3 Agricultural laborers 2 Anarchism 2 Business and politics 2 Capitalism 2 少 ...