History Social conditions 15 Economic conditions 10 Politics and government 8 Chile saltpeter industry 4 Social aspects 4 Women 4 more ... Colonies 3 Economic aspects 3 Finance, Public 3 Labor movement 3 Social life and customs 3 Working class 3 Anarchism 2 Banks and banking 2 Business enterprises 2 Commerce 2 Employees 2 Homosexuality 2 Industrial relations 2 Land reform 2 Land tenure 2 Middle class 2 Mineral industries 2 Peasants 2 Railroads 2 Rural conditions 2 Social movements 2 Work 2 Abandoned children 1 less ...