Slavery History 34 African Americans 9 Race relations 9 Social conditions 7 Slaves 6 Moral and ethical aspects 5 Political aspects 5 Racism 5 Slave trade 5 Social aspects 5 Blacks 4 Economic aspects 4 Colonies 3 Slavery in literature 3 Women slaves 3 African American women 2 Civil rights 2 Commerce 2 Discrimination in law enforcement 2 Health aspects 2 History and criticism 2 Premature death 2 Psychological aspects 2 Race 2 Slaveholders 2 Study and teaching 2 Women 2 Abuse of 1 Accounting 1