Emigration and immigration History 6 Ethnic relations 3 Government policy 3 Jews 3 Social conditions 2 Antisemitism 1 Boundaries 1 Citizenship 1 Diplomatic and consular service, American 1 German literature 1 Holocaust survivors 1 Immigrants 1 Jewish refugees 1 Jews, Soviet 1 Migrations 1 Minorities 1 Minority authors 1 Multiculturalism 1 Pluralism (Social sciences) 1 Public opinion 1 Race relations 1 Refugees, Jewish 1 Rescue 1 Territorial questions 1 World War, 1914-1918 1 World War, 1939-1945 1 Xenophobia 1