Colonies History Slavery 12 Slave trade 11 Slavery in literature 9 Emancipation 8 Slaves 8 Administration 6 British 5 Indians of North America 5 Emigration and immigration 4 Foreign relations 4 French 4 Colonization 3 Imperialism 3 Politics and government 3 Race relations 3 Relations 3 Social conditions 3 Blacks 2 Civilization 2 Commerce 2 Discovery and exploration 2 First contact with Europeans 2 Genealogy 2 Indians of South America 2 Literacy 2 Public opinion 2 Social aspects 2 Spaniards 2