Imperialism 1,678 History 1,348 Colonies 507 Imperialism in literature 476 History and criticism 431 Foreign relations 364 Social aspects 234 more ... Politics and government 211 Political aspects 183 Colonies in literature 170 Territorial expansion 145 Relations 133 In literature 130 English literature 110 Colonization 105 Postcolonialism 100 Race relations 99 Historiography 93 Civilization 91 Nationalism 90 Social conditions 85 Philosophy 78 Public opinion 69 World politics 69 English fiction 61 Intellectual life 60 Racism 60 American literature 59 Economic aspects 58 Ethnic relations 54 less ...