History 24 Slaves 21 Slavery 19 Slave trade 15 African Americans 10 Social conditions 7 Human rights 6 Autobiography 5 Caste 5 English literature 5 History and criticism 5 Women slaves 5 Adivasis 4 Agriculture 4 American literature 4 Antislavery movements 4 Bhil (Indic people) 4 India 4 Race relations 4 Racism 4 African American authors 3 African American women 3 Biography 3 Imperialism 3 Jewish merchants 3 Latin American poetry 3 Plantation life 3 Social Science 3 Social Sciences 3 Women 3