Events Leading up to Civil War
Conflicts in Mexican region Texas Independence ? 1844 Prior to 1844, Texans were calling for independence joining the Union. John Tyler, part of the Whig party, supported the annexation of Texas, hoping it would get him reelected. However secretary of state John Calhoun connected the annexation of Texas with the expansion of slavery, which heightened fears in the North. Wilmot Proviso ? 1846 In 1846, the Wilmot Proviso was included in a bill regarding the territories acquired from Mexico. It declared that ?Neither slavery nor involuntary servitude shall ever exist in any part of said territory?.