In 1853, the United States paid Mexico $10 million for less than 30,000 square miles of land, facilitating the completion of a Southern transcontinental railroad and decades of economic growth.

Dr. Forrester discusses the westward expansion of the United States. She discusses the importance of the Santa Fe Trail, the Chisholm Trail, and the Gadsden Purchase.

This video looks at the documents conceived in a period when the civil rights of women and Native Americans were in question, and slavery was driving a wedge between slaveholders and abolitionists. Educators from noted American...

Franklin Pierce only served one term, but the borders of America changed a fair amount during his time in office. Let's see what events led to these changes and what happened to Pierce!