History 236 Readers 93 German language 76 Readers (Primary) 66 Histoire 44 African Americans 43 Politics and government 35 more ... Ukrainian language 34 Indians of North America 29 Primers, German 29 Czech language 25 Social conditions 25 Readers and speakers 24 Social life and customs 24 Grammar 19 Textbooks 19 Latvian language 18 Description and travel 17 Greek language 17 Polish language 17 English language 16 Greek language, Modern 16 Norwegian language 16 Reader 16 Slovak language 16 Education 15 French language 15 History and criticism 15 Jews 15 Emigration and immigration 14 Race relations 14 Women 14 Biography 13 Presidents 13 Study and teaching 13 American literature 12 Catechisms 12 Slavery 12 Swedish language 12 Genealogy 11 less ...