The Mexican War Did Not Cause the Civil War

Plagued with the ever-present plight of war, the United States has endured many forms of this widespread and deadly affliction over the course of its relatively young life. Unceasingly analyzed in hopes of perhaps understanding the underlying and sometimes hidden causes, such wars have captivated the minds of scholars since the moment the nation's fathers tore independence from the stubborn clutch of England. Consider the great Civil War, a war that tested the United States' reputation of increasing power, of unification, of steadfastness. Often simplified and romanticized when being presented to young children, the causes of the Civil War are much more muddled and shady than any middle school teacher can make them out to be. While it is undeniable that the Mexican War accelerated the arrival of it, the Civil War was ineffable. Propelled by factors such as the Supreme Court's controversial Dred Scott decision, the popularity of Uncle Tom's Cabin, and the emergence of the Republican party, based on the fundamental opposition to slavery, the eventual explosion of tensions between the North and the South was unavoidable.
The Mexican War certainly made the issue of slavery extremely pressing. With the acquisition of new territories during the first half of 17th century, such as The Louisiana Purchase, Oregon Country, and Kansas and Nebraska, a decision to either allow or outlaw slavery in the new territories was vital. Of course, the South urged Congress to legalize the institution it relied so heavily upon, and appropriately, vice versa occurred in the North. Such a pressing issue served one major purpose. The decision to be made tremendously publicized the issue of slavery, spreading either approval or hatred of it. Slavery was no longer something foreign and distant to Northerners; it was possible for it to spread. This was the only controversy concerning slavery the Mexican War raised, and this was the only affect on slavery the Mexican War had.
Meanwhile, on the eastern half of the United States in the mid-1800's, crisis was escalading. One of the biggest contributions to the increased tensions was the novel written by Harriet Beecher Stowe. One of the most powerful pieces of not only anti-slavery propaganda, but literature in general, Uncle Tom's Cabin was extremely influential. By bringing the message of abolitionism to an enormous new audience, more and more people adopted the anti-slavery philosophy. Skyrocketing from minuscule numbers of abolitionists just a few years before, abolitionism in the North became extremely widespread. Thus, Stowe became a hero to many Northerners, while representing depravity in the South. Therefore, a simple novel helped increase sectional division to a degree never-before-seen. Another fundamental cause of the Civil War was the infamous Dred Scott Decision made by the Supreme Court. Northerners were appalled by the court's failure to recognize African-Americans as citizens. This monumental decision urged Northerners to pursue their cause passionately and fully. The final factor contributing to the heightening of tensions between the North and the Southern portions of the United States is the emersion of the Republican party. Centered around the belief that slavery is immoral and wrong, the existence of republicans impacted the government and how it dealt with slavery. With a republican president, Abraham Lincoln, entering into the presidency in 1860, the anti-slavery philosophy affected the way Washington was run.