History 1,427 Politics and government 700 Economic conditions 237 Social conditions 232 History and criticism 187 Civilization 167 Social life and customs 161 more ... Spanish language 153 Relations 151 Nationalism 129 Puerto Rican literature 119 Histoire 106 Population 89 Slavery 78 Description and travel 75 Puerto Ricans 73 Education 72 Manners and customs 72 Self-determination, National 72 Women 71 Autonomy and independence movements 69 Housing 68 Emigration and immigration 66 National characteristics, Puerto Rican 64 Social aspects 64 Economic history 62 Indians of the West Indies 56 Folklore 55 Political parties 55 Provincialisms 55 less ...