History 79 Polish Americans 70 Ethnic groups 55 Churches 48 Religious life 48 Church societies 38 Societies, etc 38 more ... Church buildings 37 Social conditions 34 Polish people 32 Lithuanian Americans 30 African Americans 21 Lithuanians 20 Anniversaries, etc 18 German Americans 18 Germans 17 Czech Americans 16 Greek Americans 15 Japanese Americans 15 Politics and government 15 Jews 14 Biography 13 Italian Americans 12 Polish American newspapers 12 Race relations 12 Working class 12 Ethnic relations 11 Minorities 10 Political activity 10 Welsh Americans 10 Anarchism 9 Czechs 9 Haymarket Square Riot, Chicago, Ill., 1886 9 Labor movement 9 Polish American Catholics 9 Histoire 8 Italians 8 Periodicals 8 Socialism 8 Czech American newspapers 7 less ...