Periodicals 705 History 667 Societies, etc 361 Genealogy 238 Polish Americans 177 Indians of North America 168 Jews 162 more ... African Americans 132 Politics and government 111 Education 109 Polish people 97 Religious life 73 Emigration and immigration 64 Armenian Americans 61 Art 60 Armenians 56 Almanacs, American 52 Study and teaching 51 Charities 47 Slovaks 46 Agriculture 44 Social life and customs 44 American literature 43 Slovak Americans 43 Minorities 42 Women 41 Slavery 40 Social conditions 40 Railroads 39 Civilization 37 Collectors and collecting 37 Government relations 37 Missions 37 Science 36 Economic conditions 33 Society of Friends 33 Description and travel 32 Medicine 32 Museums 32 Registers of births, etc 31 less ...