Mesilla Plaza

Mesilla Plaza is the central plaza in the small town of Mesilla in far southern New Mexico. The plaza and a number of its surrounding buildings are a National Historic Landmark District, significant for its role in the transfers of power that brought first the original New Mexico Territory and later the Gadsden Purchase into United States control. The most notable building facing the plaza is the Basilica of San Albino, which has been on the plaza since its establishment in 1851. The plaza was declared a National Historic Landmark in 1961.Description and historyThe town of Mesilla was created by a Mexican government decree in 1848, as a place to receive Mexican citizens who sought to remain on Mexican soil after the cession of the northern parts of present-day New Mexico were ceded to the United States in the 1848 Treaty of Guadalupe-Hidalgo, which ended the Mexican-American War. Just five years later, the Gadsden Purchase agreement result in the United States purchase of the southern strips of present-day New Mexico and Arizona, an area that includes Mesilla. The Mesilla Plaza was the site of an official flag-raising ceremony on November 18, 1854, confirming United States sovereignty over the area. The town continued to hold a prominent economic role in territorial affairs, serving as a stop on the Butterfield Overland Mail route, and other stagecoach routes. It served as a military center during the American Civil War, at different times for both Union and Confederate forces in the Arizona Territory.