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Manifest Destiny: The Era Of American Westward Expansion

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Between 1803 and 1850, Manifest Destiny has termed the era of American westward expansion. During this westward expansion of American territory, slavery played a key role in the development of states and to an extent added fuel to the imperialistic fire. As claims to land were made, slavery became a prime concern and this helped force the issue of slavery into national politics. In 1803, President Thomas Jefferson signed the Louisiana Purchase, a $15 million deal which effectively doubled the size of the United States. Jefferson firmly believed that western expansion was vital to the republic and a virtuous body of citizens. Given land, Jefferson believed that making Americans independent small yeoman farmers would make them capable of virtue. …show more content…

Cotton production in the South became an increasingly important economic driver for which land and forced labor, preferably slaves, were necessary for growth. Northerners were opposed to expansion of slavery and King Cotton as cotton became known westward not because of the institution of slavery, but rather because slavery ran against their economic opportunities. Northerners wanted the land of West for their own personal economic use and to increase the number of yeoman farmers. As land became engulfed by slave owners either on the run from debt or ambitiously in search of making profit, encroachment onto foreign territory became an issue, especially onto Mexican territory. The Mexican government was willing to accommodate these settlers if they agreed to follow certain conditions, a few of which were converting to Catholicism and freeing their slaves. In 1837, American settlers, mainly slave owners, and the local Tejano people together won independence from Mexico and applied for entry of Texas into the Union as a slave state. The addition of Texas as a slave state threatened to upset the delicate balance restored by the Missouri Compromise, so Texas was shelved for a while.Texas returned to the table as a problem to be solved with the election of President James K. Polk in 1844. Polk was a well known slave owner and cotton planter who well supported expansion of the West. In 1846, Texas entered the union as a slave state and negotiations were made with Great Britain to acquire the Oregon as a free state to give balance. Shortly following the addition of Texas to the United States, Polk used a disputed parcel of land with Mexico to declare what would be the Mexican War. The Mexican War was very unpopular, especially by northerners who saw this as an aggressive move to expand slavery. In response, Congressman David Wilmot of Pennsylvania proposed the

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