Colonization History 70 Colonies 37 Imperialism 15 Emigration and immigration 13 Politics and government 13 Social aspects 11 Social conditions 8 British 7 Race relations 7 African Americans 6 Decolonization 6 Immigrants 6 Indigenous peoples 6 Assisted emigration 5 Economic aspects 5 Government relations 5 Indians of North America 5 Relations 5 Administration 4 Foreign relations 4 Globalization 4 Government policy 4 Historiography 4 Sex role 4 Description and travel 3 Economic conditions 3 Ethnology 3 Gold discoveries 3 Human body 3