U.S. history concepts · AP U.S. History

Popular sovereignty

Popular sovereignty: In the sectional crisis, the idea that settlers in a territory should vote on whether to allow slavery; more broadly, the principle that government's authority comes from the people.

By the CollegePrepRoom editorial team · Updated · How we write and check these pages

What it means

In the 1840s and 1850s, popular sovereignty was promoted as a compromise that would let territories decide the slavery question themselves. The Kansas-Nebraska Act of 1854 applied it, leading to violent conflict in Kansas as pro- and antislavery settlers rushed in.

In AP U.S. Government, popular sovereignty refers to the broader principle that the people are the source of political power, as reflected in the Declaration of Independence and the Constitution's preamble.

Example

Violence in 'Bleeding Kansas' in the mid-1850s showed that letting settlers decide slavery deepened the conflict.

On the exam

Know both meanings: the sectional-crisis policy in APUSH Period 5 and the democratic principle in AP Gov Unit 1.

Lessons and practice questions

Related terms