Slave trade 67 History 63 Slavery 33 Slave-trade 21 Slaves 19 Colonies 14 Slavery in literature 14 Emancipation 11 Social conditions 7 Antislavery movements 6 Blacks 6 Commerce 6 Slave trade in literature 6 History and criticism 5 Economic aspects 4 Economic conditions 4 Race relations 4 American literature 3 Anti-slavery movements 3 Politics and government 3 Slavery in Great Britain 3 Women slaves 3 Africans 2 Afro-American authors 2 Afro-Americans 2 Black authors 2 Blacks in literature 2 English literature 2 Forced labor 2 Historiography 2