1850s
1850–1859The Fugitive Slave Act radicalizes the North while the Underground Railroad reaches its height.
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Key events
- September 18, 1850The Fugitive Slave Act of 1850
A federal law compelling citizens to capture escapees — radicalizing the North and endangering all Black Americans.
- December 1850Harriet Tubman escapes and returns
After escaping slavery, Tubman makes repeated trips back via the Underground Railroad, freeing dozens.
- March 6, 1857Dred Scott v. Sandford
The Supreme Court rules that Black people are not citizens and have "no rights which the white man was bound to respect."
- October 16, 1859John Brown's raid on Harpers Ferry
John Brown's failed raid to arm the enslaved pushes the nation toward civil war.
- March 20, 1852Uncle Tom's Cabin
Harriet Beecher Stowe's novel galvanizes Northern antislavery opinion.