The Fugitive Slave Act of 1850

The Fugitive Slave Act of 1850 was among the most explosive laws in American history. Part of the Compromise of 1850, it required citizens and officials in the free states to assist in capturing and returning people who had escaped slavery — and imposed heavy penalties on anyone who helped them stay free.

The law stripped accused fugitives of basic protections: they could not testify on their own behalf or claim a jury trial, and the federal commissioners who decided their fate were paid more for ruling that a person was a slave than for ruling them free. Free Black Northerners, including those who had never been enslaved, lived under constant threat of seizure.

Rather than calm the sectional crisis, the act inflamed it. Northerners who had been indifferent to slavery were now legally compelled to take part in it, and many were horrified. Resistance spread: crowds freed captured fugitives, states passed personal-liberty laws, and the Underground Railroad extended to Canada, beyond the law's reach.

The Fugitive Slave Act did more than almost any single measure to turn Northern opinion against slavery. It inspired Uncle Tom's Cabin, hardened abolitionist resolve, and pushed the nation another long step down the road to civil war.