Colonies 601 History 578 Imperialism 127 Politics and government 91 History and criticism 84 Administration 78 Colonies in literature 77 Imperialism in literature 60 Foreign relations 51 Decolonization 49 Social conditions 47 Emigration and immigration 46 Economic conditions 43 Colonization 41 Colonial influence 38 Social aspects 37 Postcolonialism 35 English literature 33 British 32 Race relations 31 Immigrants 28 Civilization 25 Indians of North America 24 Women 24 Slavery 23 Public opinion 22 Historiography 21 Economic aspects 19 Commerce 16 Economic policy 16