The low desert and high mountainous land that comprises Arizona was once a part of Sonora, Mexico. The U.S. acquired the land ...

Treaty of Guadalupe Hidalgo was signed in the village of Guadalupe Hidalgo on Feb. 2, 1848, ending the Mexican War and extending the boundaries of the United States west to the Pacific Ocean.

Feb. 02 (UPI) --On this date in history: In 1848, the war between the United States and Mexico formally ended with the signing of the Treaty of Guadalupe Hidalgo. It provided for Mexico's cession ...

In 1848, President Zachary Taylor proposed the Treaty of Guadalupe Hidalgo to Congress to annex ... occupation and purchase. But so, too, is dissent. Once the U.S. legally acquires territories ...