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This compromise tried to keep peace between free and slave states. It allowed California to enter as a free state and created the Fugitive Slave Act, which forced people to return escaped slaves. How it led to war:
It angered Northerners who hated helping enforce slavery and made the divide between North and South even deeper. -
Pro-slavery and anti-slavery settlers rushed into Kansas, fighting bloody battles over whether it would become a free or slave state.
How it led to war:
The violence proved compromise was impossible and made both sides see each other as enemies. -
This act, introduced by Senator Stephen Douglas, allowed settlers in Kansas and Nebraska to vote on slavery (popular sovereignty).
How it led to war:
It repealed the Missouri Compromise’s ban on slavery north of 36°30′, sparking violent conflict and dividing the nation further. -
Abraham Lincoln and Stephen Douglas debated slavery’s expansion during their Illinois Senate race.
How it led to war:
Lincoln’s strong moral stance against slavery made him a Northern hero and a Southern enemy. -
After Senator Charles Sumner gave a speech attacking slavery, Representative Preston Brooks brutally beat him with a cane on the Senate floor.
How it led to war:
Southerners praised Brooks, Northerners were outraged, and it showed how violent and personal the slavery debate had become. -
The Supreme Court ruled that Dred Scott, an enslaved man, was not a citizen and that Congress couldn’t ban slavery in the territories.
How it led to war:
This decision made slavery legal everywhere and outraged Northerners, destroying hopes for political compromise. -
Abolitionist John Brown led a failed raid on the federal arsenal at Harpers Ferry, Virginia, to spark a slave revolt.
How it led to war:
Brown’s capture and execution made him a martyr in the North and terrified Southerners, convincing them war was coming. -
Abraham Lincoln was elected president without carrying a single Southern state.
How it led to war:
Southern states saw his victory as proof they had lost power in the Union, leading them to secede soon after.