Wilmot Proviso the Legislation in Mexico was won which says that no bondage should be carried out in the lands and approved by the House of Representation, however, Senate dismissed it. This law was formed in 1846, it was an effort to add this law to the Treaty of Guadalupe Hidalgo also which says that any property transferred from the territory of Mexico would have no servitude.
The Wilmot Proviso, one of the significant developments pointing to the American Civil War. Slavery was outlawed in all region obtained from Mexico by Wilmot Proviso. This returned the common discussion over servitude and suspect happened. The population belonging to the South didn’t like the proviso and opposed because it assassinated common self-determination as an opportunity. This divided the community and brought on the retirement and ultimately the civil war.