History 62 Politics and government 24 Social conditions 15 Yoruba (African people) 13 Igbo (African people) 7 Social life and customs 7 Ethnology 6 more ... Foreign relations 6 International relations 6 Economic conditions 5 Gender roles 5 Philosophy, Yoruba 5 Sex role 5 Colonization 4 Ethnic identity 4 Hausa (African people) 4 Indigenous peoples 4 Religion 4 Social aspects 4 Women 4 Women, Igbo 4 Women, Yoruba 4 Womyn 4 Civilization 3 Colonies 3 Description and travel 3 Ethnic relations 3 Kings and rulers 3 Manners and customs 3 Rites and ceremonies 3 less ...