The long-awaited vote survived objections from the panel’s most right-leaning Republicans, who criticized the lessons as ...

After the Treaty of Guadalupe Hidalgo effectively ended the U.S.-Mexican War in 1848, the U.S. government acquired jurisdiction of what later became Arizona territory north of the Gila River.

The 1848 Treaty of Guadalupe Hidalgo ceded what are now California, Utah and Nevada, and parts of present-day Colorado, Arizona, New Mexico and Wyoming, to the United States.