This 1853 deal that brought the U.S. chunks of New Mexico & Arizona is known in Mexico as the sale of La Mesilla
... and a large portion of northern Mexico to $15 million for a smaller land deal 
that... [DOC] [TLE] Gadsden Purchase | United States-Mexican history | Britannica.com [PAR] Known in Mexican history as the sale of the Mesilla Valley, it.