Dating back to the years of 1800-1855 the United states was growing in population, size and knowledge. Before the 1800s the US colonies had accepted the idea of expansion as settlers were migrating west even before winning their independence from Britain in the Revolutionary war. The year of 1830s brought many ideas that influenced the need to expand such as the manifest destiny coined by American columnist John O’ Sullivan. O’sullivan introduced the idea of manifest destiny which relies on the foundation that it is a god given right for Americans to expand their territory. Although the manifest destiny and the issue of territorial expansion created many disparities and conflicts among foreign nations, such as the Mexican-American war, it
