The league of nations (which i assume you're talking about) was formed on <span>June 28, 1919.</span>
When Mexico achieved its independence from Spain in 1821, New Mexico became a province of Mexico, and trade was opened with the United States. ... Two years later, the Treaty of Guadalupe Hidalgo ceded New Mexico to the United States, and in 1853 the territory was expanded to its present size through the Gadsden Purchase.
The supreme court was very discrete and strict.
