This collection uses primary sources to explore the life and political impact of Henry Clay. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

Students will examine tables of data from the 1820 Census to understand the implications of the Missouri Compromise, specifically in Maine and Missouri.

The purpose of this activity is to introduce students to the Missouri Compromise and the issues associated with the expansion of slavery in the Antebellum period of United States history. Students will begin the activity by creating a map that represents the Missouri Compromise’s impact on the United States. This map will serve as a backdrop for the activity while introducing students to political and cultural sectionalism (northern and southern states and the issue of slavery) in the early 1800s. After students complete the map, they will answer several questions using it. Students will also be prompted to examine aggregated data from the 1820 Census and a map titled “Mapping Slavery in the Nineteenth Century” to make comparisons and draw conclusions about slavery, specifically in Missouri.

By the end of this section, you will be able to:Explain why the North and South differed over the admission of Missouri as a stateExplain how the admission of new states to the Union threatened to upset the balance between free and slave states in Congress

 U.S. History is designed to meet the scope and sequence requirements of most introductory courses. The text provides a balanced approach to U.S. history, considering the people, events, and ideas that have shaped the United States from both the top down (politics, economics, diplomacy) and bottom up (eyewitness accounts, lived experience). U.S. History covers key forces that form the American experience, with particular attention to issues of race, class, and gender.Senior Contributing AuthorsP. Scott Corbett, Ventura CollegeVolker Janssen, California State University, FullertonJohn M. Lund, Keene State CollegeTodd Pfannestiel, Clarion UniversityPaul Vickery, Oral Roberts UniversitySylvie Waskiewicz

By the end of this section, you will be able to:Explain why the North and South differed over the admission of Missouri as a stateExplain how the admission of new states to the Union threatened to upset the balance between free and slave states in Congress