Chapter 18

The Gold Rush swelled California's population so fast that it applied for admission as a free state in 1849 — threatening to upset the delicate balance of fifteen free and fifteen slave states in the Senate.

Southerners threatened secession if California were admitted without some counterbalancing concession, while northerners resisted any further expansion of slavery. The crisis tested whether the aging compromise-makers of an earlier generation could once again hold the Union together.

Aging Henry Clay proposed a sweeping compromise: admit California as a free state, organize the rest of the Mexican Cession without mention of slavery (leaving it to popular sovereignty), abolish the slave trade (but not slavery) in Washington, D.C., and pass a stronger fugitive slave law.

The measure stalled until Illinois senator Stephen A. Douglas broke it into separate bills, passing each with shifting coalitions. The Compromise of 1850, signed by President Millard Fillmore (who had succeeded Zachary Taylor), postponed the crisis — but at a steep price for the North.

Douglas's skillful maneuvering earned him a reputation as the "Little Giant" of American politics, but the compromise he helped pass would soon prove far more fragile than its architects hoped.

The new Fugitive Slave Law was the most controversial part of the compromise. It denied accused runaways a jury trial, required northern citizens to help capture them, and imposed harsh penalties on anyone who aided an escapee.

Northern outrage was immediate and intense. Personal-liberty laws, mob rescues, and open defiance sprang up across the North, and the law's brutal enforcement radicalized many previously moderate northerners — helping to inspire Harriet Beecher Stowe's Uncle Tom's Cabin.

Democrat Franklin Pierce won the presidency in 1852, promising to enforce the Compromise of 1850 and let the sectional issue rest. His administration embraced an expansionist "Young America" foreign policy, eyeing Cuba and Central America for potential annexation.

The scandalous Ostend Manifesto (1854), a leaked proposal to seize or buy Cuba from Spain, embarrassed the administration and reinforced northern suspicions of a "slave power" conspiracy to expand slavery abroad.

Eager to build a transcontinental railroad through Chicago, Stephen Douglas proposed organizing the Nebraska Territory. To win southern support, his Kansas-Nebraska Act (1854) divided the area into two territories, Kansas and Nebraska, and let settlers there decide slavery's fate by popular sovereignty.

The bill explicitly repealed the Missouri Compromise line of 1820, which had banned slavery in this region. The move outraged the North, shattered the fragile Compromise of 1850, and reopened the entire slavery-expansion question with explosive force.

Proslavery and antislavery settlers rushed into Kansas, each side hoping to win the territory through popular sovereignty — and both sides resorting to fraud and violence. Rival proslavery and free-soil governments each claimed legitimacy.

In 1856, proslavery "border ruffians" from Missouri sacked the free-soil town of Lawrence, Kansas, and abolitionist John Brown retaliated with the brutal Pottawatomie Massacre. The resulting guerrilla warfare made "Bleeding Kansas" a grim preview of the coming Civil War.