Ethnic groups 179 Minorities 58 Emigration and immigration 38 Immigrants 30 Societies, etc 25 History 24 Ethnicity 23 more ... Social conditions 16 Periodicals 15 Bibliography 14 Ethnology 14 Race relations 14 Study and teaching 13 Fraternal organizations 11 Education 9 Ethnic relations 9 History and criticism 8 Statistics 8 American literature 6 Americanization 6 Hungarian Americans 6 Irish Americans 6 Minority authors 6 71.37 ethnic groups 5 Assimilation (Sociology) 5 Aufsatzsammlung 5 Civilization 5 Congresses 5 Ethnic groups in literature 5 Émigration et immigration 5 Jews 5 Population 5 Acculturatie 4 African Americans 4 Children of immigrants 4 Economic conditions 4 Ethnic attitudes 4 Ethnic press 4 Ethnicity in literature 4 Foreign population 4 less ...