Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?

On February 2, 1848, the Treaty of Guadalupe Hidalgo was signed which officially ended the Mexican-American War. However, as the guns fell silent, and the men returned home, a new war was brewing, one that continues to shape the course of this country to this day. 

While Ulysses S. Grant might have argued that the Civil War was God’s punishment for the Mexican-American War, a “wicked war" that was rooted in imperialism and the expansion of slavery, many Americans supported the Mexican-American War as they viewed it as the fulfillment of Manifest Destiny: the promise that the United States would extend from “sea to shining sea.” While Manifest Destiny remains a core of U.S. national identity, in the 1840s it encouraged a slew of ideological debates over this potential new territory, specifically if the territory should be free or enslaved. The Louisiana Purchase caused a major crisis over the organization of new states which Congress ultimately resolved with the Missouri Compromise, the compromise to end all compromises. It is important to note that the debates in 1820 were largely split among party lines, i.e. Democrats vs. Whigs. However, the Mexican American War reopened past wounds and sent the United States into another legislative crisis.

Even before the war was won and territory had been ceded, Congress was already discussing how to organize any potential new territory gained as reparations from Mexico.  One of the most important of proposals was the Wilmot Proviso which Representative David Wilmot of Pennsylvania proposed in 1846, two years before the war ended. Under this proviso, any territory gained by war with Mexico should be free and thus reserved exclusively for whites. Wilmot was a free-soiler, which meant that he did not want to abolish slavery in the places it currently existed but rather prevent its expansion to new territories. However, Wilmot was also a Northern Democrat, and most Democrats supported slavery and protected it, even if they themselves did not own slaves. Many Northern Whigs believed in something called the Slave Power Conspiracy, a conspiracy theory in which slaveowners (the Slave Power) dominated the country’s political system even though they were a minority group, which was accomplished through a coalition with “dough-faced Democrats,” Northern Democrats who supported and protected slavery. While the Wilmot Proviso failed in the Senate, it passed in the House of Representatives because of a coalition between Northern Democrats and Northern Whigs and illustrates the first shift from party alliances to sectional alliances. Indignation over the Wilmot Proviso united southerners against northern threats to their most valuable institution, slavery. After this vote, the antebellum political landscape was forever changed.

The failure of the Wilmot Proviso only put off the issue of slavery for so long. With the Treaty of Guadalupe Hidalgo, Mexico ceded over 525,000 square miles of territory to the United States in exchange for $15 million and the assumption of Mexican debts to American citizens, which reopened the slavery issue. In order to promote party loyalty without aggravating sectional tensions, the Whigs did not include specific resolutions on slavery in their official platform for the Election of 1848. The Democrats ran on popular sovereignty, which is the idea that the status of a territory will be determined by the people residing in that territory. Popular sovereignty is neither explicitly pro-slavery or anti-slavery; however, it does nullify the Missouri Compromise. Neither party adopted a firm stance on slavery in the 1848 election; however, the free-soilers made the election about slavery. Consequently, the Whigs and the Democrats developed campaign materials to be sectionally distributed which highlighted their candidate's support and opposition for slavery respectively. The separate campaign materials in this election reveal the growing sectional divide in antebellum America.

Despite the growing sectionalism, Zachary Taylor, a hero of the Mexican-American War and a slaveholding Whig was elected president in 1848 and served for two years before dying in office of natural causes. The Mexican-American War projected Taylor into a position of celebrity and enabled his election in 1848. After his election, Taylor promised not to intercede with Congress’s decision for the organization of the Mexican Cession. Many southerners felt betrayed by Taylor, a slaveowner from Louisiana, as they equated his position with those of a free-soiler. In this time of heightened sectional tensions, southerners believed that if one did not actively protect slavery and its expansion, one supported abolition.

As a direct result of the Mexican Cession, the California Gold Rush began in 1849 which caused a massive frenzy to organize and admit California into the Union.  The Missouri Compromise stated that any territory north of the 36°30’ parallel would be free; however, the line would divide California into two sections. California was never a US territory and approved a free constitution, elected a Governor and legislature and applied for statehood by November 1849. Since California did not wish to be divided into two separate states, a new compromise was formed, aptly named the Compromise of 1850. Under the Compromise of 1850, California was admitted as a free state without deciding the fate of the remainder of the Mexican Cession. Additionally, under this compromise, there was the federal assumption of Texas debt, the abolishment of the slave trade in the District of Columbia, and a stronger fugitive slave law. While controversial, the Compromise of 1850 alleviated the growing tensions over slavery and delayed a full-blown crisis over the issue.

However, in 1854 tensions over slavery once again skyrocketed over the organization of Kansas and Nebraska. While Kansas and Nebraska were not part of the Mexican Cession, their debates over their organization are linked to the Mexican-American War. As stated above, the Mexican-American War re-opened the discussions over how to organize territory, and one of the proposed solutions was popular sovereignty. While the Compromise of 1850 elected not to include popular sovereignty, it reemerged in 1854 with the Kansas-Nebraska Act, where Kansas and Nebraska would be organized using popular sovereignty.  The Kansas-Nebraska Act caused Bleeding Kansas, where pro-slavery and anti-slavery Americans flocked to Kansas in an attempt to establish either a slave or free government in that state, which eventually erupted into violence where neighbor killed a neighbor in the name of slavery and abolition. Bleeding Kansas is also the first instance where John Brown, famous for his 1859 raid on Harper’s Ferry, used violence to enact his radical abolition vision. Moreover, the Kansas-Nebraska Act propelled future President Abraham Lincoln into the national spotlight. The Kansas-Nebraska Act was Senator Stephen Douglas of Illinois’s pet project and popular sovereignty is often associated with Douglas. Lincoln and Douglas engaged in a series of debates in 1858, which mainly focused on popular sovereignty and slavery’s expansion. While Lincoln lost the senatorial election in 1858 to Douglas, he became well known because of the debates, which positioned himself to be the Republican candidate for the Presidential Election of 1860. Additionally, the Kansas-Nebraska Act was the final nail in the coffin for the Whig Party and paved the way for the establishment of the Republican Party, the first prominent anti-slavery party which was rooted in sectionalism.

Ralph Waldo Emerson prophetically wrote, “Mexico will poison us.” The Mexican-American War and the massive territory gained reopened debates over slavery which diminished party alliances and increased sectional alliances. These debates over slavery eventually led to the demise of the Second Party System and paved the way for the rise of Republicanism. Sectional tensions had never been stronger and there were open discussions of disunion which increased as the 1850s progressed. All these tensions and issues would come to head with the Election of 1860 and eventually with the Civil War, where brother fought against brother. To say "Mexico poisoned" the United States is an understatement, the bloodshed during the Civil War rivaled any other American conflict and today we are still in the process of healing wounds that occurred over 150 years ago.

Further Reading:

The Civil War was the culmination of a series of confrontations concerning the institution of slavery. The following is a timeline of the events that led to the Civil War.​

1619-1865 | The Peculiar Institution

Slavery arrived in North America along side the Spanish and English colonists of the 17th and 18th centuries, with an estimated 645,000 Africans imported during the more than 250 years the institution was legal.  But slavery never existed without controversy. The British colony of Georgia actually banned slavery from 1735 to 1750, although it remained legal in the other 12 colonies. After the American Revolution, northern states one by one passed emancipation laws, and the sectional divide began to open as the South became increasingly committed to slavery. Once called a “necessary evil” by Thomas Jefferson, proponents of slavery increasingly switched their rhetoric to one that described slavery as a benevolent Christian institution that benefited all parties involved: slaves, slave owners, and non-slave holding whites. The number of slaves compared to number of free blacks varied greatly from state to state in the southern states. In 1860, for example, both Virginia and Mississippi had in excess of 400,000 slaves, but the Virginia population also included more than 58,000 free blacks, as opposed to only 773 in Mississippi. In 1860, South Carolina was the only state to have a majority slave population, yet in all southern states slavery served as the foundation for their socioeconomic and political order.

1820 | The Missouri Compromise

Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?
This 1856 map shows the line (outlined in red) established by the Missouri Compromise. (Library of Congress)

In the growth years following the 1803 Louisiana Purchase, Congress was compelled to establish a policy to guide the expansion of slavery into the new western territory.  Missouri’s application for statehood as a slave state sparked a bitter national debate.  In addition to the deeper moral issue posed by the growth of slavery, the addition of pro-slavery Missouri legislators would give the pro-slavery faction a Congressional majority.  

Ultimately, Congress reached a series of agreements that became known as the Missouri Compromise.  Missouri was admitted as a slave state and Maine was admitted as a free state, preserving the Congressional balance.  A line was also drawn through the unincorporated western territories along the 36°30' parallel, dividing north and south as free and slave.  

Thomas Jefferson, upon hearing of this deal, “considered it at once as the knell of the Union.  It is hushed indeed for the moment.  But this is a reprieve only, not a final sentence. A geographical line, coinciding with a marked principle, moral and political, once conceived and held up to the angry passions of men, will never be obliterated; and every new irritation will mark it deeper and deeper.”

1831 | Nat Turner’s Rebellion

Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?
Nat Turner interpreted two solar eclipses as instructions from God to begin his rebellion. (Library of Congress)

In August of 1831, a slave named Nat Turner incited an uprising that spread through several plantations in southern Virginia.  Turner and approximately seventy cohorts killed around sixty white people.  The deployment of militia infantry and artillery suppressed the rebellion after two days of terror.  

Fifty-five slaves, including Turner, were tried and executed for their role in the insurrection.  Nearly two hundred more were lynched by frenzied mobs.  Although small-scale slave uprisings were fairly common in the American South, Nat Turner’s rebellion was the bloodiest.

Virginia lawmakers reacted to the crisis by rolling back what few civil rights slaves and free black people possessed at the time.  Education was prohibited and the right to assemble was severely limited.  

1846 - 1850 | The Wilmot Proviso

The Wilmot Proviso was a piece of legislation proposed by David Wilmot (D-FS-R PA) at the close of the Mexican-American War.  If passed, the Proviso would have outlawed slavery in territory acquired by the United States as a result of the war, which included most of the Southwest and extended all the way to California.  

Wilmot spent two years fighting for his plan.  He offered it as a rider on existing bills, introduced it to Congress on its own, and even tried to attach it to the Treaty of Guadalupe Hidalgo.  All attempts failed.  Nevertheless, the intensity of the debate surrounding the Proviso prompted the first serious discussions of secession.

1850 | The Compromise of 1850

With national relations soured by the debate over the Wilmot Proviso, senators Henry Clay and Stephen Douglas managed to broker a shaky accord with the Compromise of 1850.  The compromise admitted California as a free state and did not regulate slavery in the remainder of the Mexican cession all while strengthening the Fugitive Slave Act, a law which compelled Northerners to seize and return escaped slaves to the South.

While the agreement succeeded in postponing outright hostilities between the North and South, it did little to address, and in some ways even reinforced, the structural disparity that divided the United States.  The new Fugitive Slave Act, by forcing non-slaveholders to participate in the institution, also led to increased polarization among centrist citizens.  

1852 | Uncle Tom’s Cabin

Harriet Beecher Stowe’s fictional exploration of slave life was a cultural sensation.  Northerners felt as if their eyes had been opened to the horrors of slavery, while Southerners protested that Stowe’s work was slanderous.  

Uncle Tom’s Cabin was the second-best-selling book in America in the 19th century, second only to the Bible.  Its popularity brought the issue of slavery to life for those few who remained unmoved after decades of legislative conflict and widened the division between North and South.

1854 - 1859 | Bleeding Kansas

The Kansas-Nebraska Act of 1854 established Kansas and Nebraska as territories and set the stage for “Bleeding Kansas” by its adoption of popular sovereignty. Under popular sovereignty, it is the residents of the territories who decide by popular referendum if the state is to be a free or enslaved. Settlers from the North and the South poured into Kansas, hoping to swell the numbers on their side of the debate.  Passions were enflamed and violence raged. In the fall of 1855, abolitionist John Brown came to Kansas to fight the forces of slavery. In response to the sacking of Lawrence by border ruffians from Missouri whose sole victim was an abolitionist printing press, Brown and his supporters killed five pro-slavery settlers in the Pottawatomie Creek Massacre in Kansas in May, 1856. Violence existed in the territory as early as 1855 but the Sack of Lawrence and the Pottawatomie Creek Massacre launched a guerilla war between pro-slavery and anti-slavery forces. Although the violence was often sporadic and unorganized, mass feelings of terror existed in the territory. Although President Buchanan tried to calm the violence by supporting the Lecompton Constition, his relentless support for this consitution created a political crisis among the Democratic Party and only further aggravated sectional tensions. The violence subsided in 1859, the warring parties forged a fragile peace, but not before more than 50 settlers had been killed.

1857 | Dred Scott v. Sanford

Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?
Chief Justice Roger Taney proclaimed blacks "so far inferior that they had no rights which the white man was bound to respect." (Library of Congress)

Dred Scott was a Virginia slave who tried to sue for his freedom in court.  The case eventually rose to the level of the Supreme Court, where the justices found that, as a slave, Dred Scott was a piece of property that had none of the legal rights or recognitions afforded to a human being.  

The Dred Scott Decision threatened to entirely recast the political landscape that had thus far managed to prevent civil war.  The classification of slaves as mere property made the federal government’s authority to regulate the institution much more ambiguous.

Southerners renewed their challenges to the agreed-upon territorial limitations on slavery and polarization intensified.  

1858 | Lincoln-Douglas Debates

In 1858, Democratic Senator Stephen Douglas faced a challenge for his seat from a relatively unknown one term former congressmen and “prairie lawyer” Abraham Lincoln. In the campaign that followed Lincoln and Douglas engaged in seven public debates across the state of Illinois where they debated the most controversial issue of the antebellum era: slavery. Although Douglas won the senate race, these debates propelled Lincoln to the national spotlight and enabled his nomination for president in 1860. In contrast, these debates further alienated Douglas from the southern wing of the Democratic Party and the arguments Douglas made in these debates come back to haunt him in 1860 destroying his presidential chances.  

1859 | John Brown’s Raid

Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?
John Brown's stature grew in the months and years following his death. (Kansas Historical Society)

Abolitionist John Brown supported violent action against the South to end slavery and played a major role in starting the Civil War. After the Pottawatomie Massacre during Bleeding Kansas, Brown returned to the North and plotted a far more threatening act. In October 1859, he and 19 supporters, armed with “Beecher’s Bibles,” led a raid on the federal armory and arsenal at Harpers Ferry, Virginia, in an effort to capture and confiscate the arms located there, distribute them among local slaves and begin armed insurrection. A small force of U.S. Marines, led by Col. Robert E. Lee, put down the uprising. There were casualties on both sides; seven people were killed and at least 10 more were injured before Brown and seven of his remaining men were captured.  On October 27, Brown was tried for treason against the state of Virginia, convicted and hanged in Charles Town on December 2.

1860 | Abraham Lincoln’s Election

Abraham Lincoln was elected by a considerable margin in 1860 despite not being included on many Southern ballots.  As a Republican, his party’s anti-slavery outlook struck fear into many Southerners.  

On December 20, 1860, a little over a month after the polls closed, South Carolina seceded from the Union.  Six more states followed by the spring of 1861.  

1861 | The Battle of Fort Sumter

Why did Californias political leaders decide to apply for admission to the Union as a free state in the winter of 1849 quizlet?
Abraham Lincoln's skillful strategy forced the South to fire the first shot of the Civil War at the Battle of Fort Sumter. (Library of Congress)

With secession, several federal forts, including Fort Sumter in South Carolina, suddenly became outposts in a foreign land.  Abraham Lincoln made the decision to send fresh supplies to the beleaguered garrisons.  

On April 12, 1861, Confederate warships turned back the supply convoy to Fort Sumter and opened a 34-hour bombardment on the stronghold.  The garrison surrendered on April 14.  

The Civil War was now underway.  On April 15, Lincoln called for 75,000 volunteers to join the Northern army.  Unwilling to contribute troops, Virginia, Arkansas, North Carolina, and Tennessee dissolved their ties to the federal government.