Congresses History 66 Minorities 22 Emigration and immigration 21 Social conditions 21 Jews 20 Italian Americans 19 more ... African Americans 15 Ethnicity 14 Immigrants 13 Race relations 13 Societies, etc 13 Emigration and immigration law 12 Refugees 11 Education 10 Ethnic groups 10 Congrès 9 Employment 9 Italians 9 Ethnic relations 8 Legal status, laws, etc 8 Services for 8 Economic conditions 7 Government policy 7 History and criticism 7 Politics and government 7 Scots-Irish 7 Civilization 6 Foreign workers 6 Women 6 Genealogy 5 Hispanic Americans 5 Missions 5 Noncitizens 5 Study and teaching 5 Asian Americans 4 Asylum, Right of 4 Baptists 4 Cultural pluralism 4 Historiography 4 less ...