History 162 Politics and government 88 Social conditions 65 Relations 50 Economic conditions 48 Puerto Ricans 47 Civilization 28 espandi ... Nationalism 23 Race relations 23 Emigration and immigration 22 Social aspects 22 History and criticism 21 Women 19 Economic policy 18 Self-determination, National 18 Colonial influence 17 Indians of the West Indies 16 Puerto Rican literature 16 Political aspects 15 International relations 14 Migrations 12 Womyn 12 Antiquities 11 Description and travel 11 Economic history 11 Autonomy and independence movements 10 Identity (Psychology) 10 Statehood (American politics) 10 Ethnicity 9 Law and legislation 9 riduci ...