Societies, etc History 346 Periodicals 274 Jews 109 Emigration and immigration 84 Polish Americans 76 Polish people 65 more ... Slovak Americans 56 Slovaks 46 Slavery 40 Gymnastics 35 Genealogy 31 German Americans 31 Indians of North America 29 Germans 28 Irish Americans 27 Physical education and training 24 Religious life 24 Directories 23 Fraternal organizations 23 Ukrainian Americans 22 African Americans 21 Associations 20 Congresses 20 Patriotic societies 20 Ukrainians 20 Armenian Americans 19 Armenians 19 Charities 19 Missions 19 Anniversaries, etc 18 Antislavery movements 18 Minorities 18 Societies 18 Education 17 Ethnic groups 16 Study and teaching 16 Irish 15 Lithuanians 15 Political activity 15 less ...