During the 19th century, America had a growing idea of ​​Manifest Destiny, where it would claim land all the way to the east coast. As the government and citizens focused on exploring new lands, they were able to acquire much of the new land, thereby introducing new people and new ideas. Many of these people and ideas were very different from those originally found in the Thirteen Colonies, which frustrated many people. When these different people and beliefs collided, many conflicts and disagreements arose, which intensified the results of sectionalism, unfortunately leading to civil war, having a huge impact on the country. One of the major issues that led the country to sectionalism was slavery, as some people wanted to support and allow slavery, while others did not. Sectionalism became more visible during the Missouri Compromise, as the government did not allow slavery above the 36'30 line. As a result, the Northern and Southern regions became more defined, with the North wanting to abolish slavery, but the South wanting to retain it as the country expanded. When America Added the Mexican Te...