History 589 Music 195 History and criticism 186 Slavery 152 African Americans 139 Social conditions 118 Evaluation 107 more ... Politics and government 106 Social aspects 106 Economic conditions 101 Geology 92 Research 84 Description and travel 79 Criticism and interpretation 73 Architecture 66 Women 66 Economic development projects 63 Economic assistance 62 Government policy 61 Womyn 61 Botany 59 Environmental aspects 57 Religion 57 Social life and customs 56 Economic aspects 54 Astronomy 51 Education 49 Race relations 49 Manners and customs 48 Prevention 47 less ...