Periodicals Societies, etc 274 Jews 178 History 131 Polish Americans 56 Religious life 50 Polish people 48 more ... Genealogy 41 German Americans 39 Armenian Americans 34 Emigration and immigration 34 Armenians 33 Minorities 32 Bibliography 30 Education 28 Germans 27 Study and teaching 27 Charities 26 Politics and government 26 Political activity 24 African Americans 22 Indexes 22 Gymnastics 21 Physical education and training 21 Directories 20 Indians of North America 20 Social conditions 19 Congresses 17 Civilization 15 Irish Americans 15 Judaism 15 Labor unions 15 Museums 15 Slovak Americans 15 Emigration and immigration law 14 Ethnic groups 14 Ethnic relations 14 Immigrants 14 Race relations 14 Statistics 14 less ...