History 689 Social conditions 265 Politics and government 248 Black people 162 Social aspects 150 History and criticism 145 Popular music 139 more ... Economic conditions 138 Race relations 131 Civilization 105 Social life and customs 103 Indians of South America 98 Political aspects 83 Slavery 79 Foreign relations 76 Description and travel 66 Economic policy 66 Manners and customs 59 Music 56 Political activity 56 Race identity 54 Education 51 Ethnic identity 51 Brazilian literature 50 Religion 50 Motion pictures 48 African influences 45 Economic history 45 Women 44 International relations 42 less ...