USA HISTORY

Detailed explanation-1: -Historian James McPherson writes that there were some southerners who opposed it because they saw “the northern effort to exclude it [slavery] as an insult to southern honor.” The Wilmot Proviso, as this amendment came to be called, passed in the House on two separate occasions, and both times the Senate voted it down.

Detailed explanation-2: -The Wilmot Proviso was an unsuccessful 1846 proposal in the United States Congress to ban slavery in territory acquired from Mexico in the Mexican–American War. The conflict over the Wilmot Proviso was one of the major events leading to the American Civil War.

Detailed explanation-3: -Despite repeated attempts, the Wilmot Proviso was never passed by both houses of Congress. But out of the attempt by both Democrats and Whigs to subordinate or compromise the slavery issue grew the Republican Party, founded in 1854, which specifically supported the Wilmot principle.

Detailed explanation-4: -Therefore, it can be argued that the Wilmot Proviso contributed to the demise of American slavery for reasons including that the Wilmot Proviso made southerners scared of things like losing any existing power they had and losing their slaves. It also created conversation about the slave problem in Antebellum America.