History 46 Colonies 27 Slavery 11 Indians of North America 9 Discovery and exploration 8 Relations 6 Commerce 5 Social conditions 5 Administration 4 Civilization 4 Blacks 3 Economic aspects 3 Economic conditions 3 Ethnic identity 3 Foreign relations 3 Government relations 3 Imperialism 3 Race relations 3 Slave trade 3 African Americans 2 Africans 2 Colonization 2 Commercial policy 2 Emigration and immigration 2 European influences 2 First contact with Europeans 2 History and criticism 2 In literature 2 Indians of South America 2 Industrial revolution 2