History 70 Presidents 23 Juvenile literature 19 African Americans 16 Race relations 15 Women 13 Emigration and immigration 10 more ... Statesmen 9 Slavery 8 Indians of North America 7 Civil rights 6 Histoire 6 Inventors 6 Judges 6 Politics and government 6 Social life and customs 6 Abolitionists 5 Biography 5 Civil rights movements 5 Civil rights workers 5 Hispanic American judges 5 JUVENILE NONFICTION 5 Racism 5 Antislavery movements 4 Constitutional history 4 Ethnic relations 4 Flags 4 Immigrants 4 Jews 4 Officials and employees 4 People & Places 4 Prejudices 4 Printers 4 Scientists 4 Underground Railroad 4 United States 4 Biography & Autobiography 3 Children's stories 3 City and town life 3 Cooking, American 3 less ...