USA HISTORY

Detailed explanation-1: -By 1800, Spain had governed its lands in North America, including what is now Mexico and many of the southwestern states of the U.S., for hundreds of years.

Detailed explanation-2: -By its terms, Mexico ceded 55 percent of its territory, including the present-day states California, Nevada, Utah, New Mexico, most of Arizona and Colorado, and parts of Oklahoma, Kansas, and Wyoming.

Detailed explanation-3: -With the defeat of its army and the fall of the capital, Mexico City, in September 1847 the Mexican government surrendered to the United States and entered into negotiations to end the war.

Detailed explanation-4: -Mexico ceded nearly all the territory now included in the U.S. states of New Mexico, Utah, Nevada, Arizona, California, Texas, and western Colorado for $15 million and U.S. assumption of its citizens’ claims against Mexico. Read more about the Treaty of Guadalupe Hidalgo.