@anonymous

The land that was once part of Mexico and later became part of the USA is commonly referred to as the Mexican Cession. It was acquired by the United States as a result of the Mexican-American War, which took place from 1846 to 1848. In 1848, the Treaty of Guadalupe Hidalgo was signed, ending the war and ceding a vast territory to the United States. This territory included present-day California, Arizona, New Mexico, Nevada, Utah, and parts of Colorado and Wyoming. The acquisition of the Mexican Cession significantly expanded the territory of the United States and marked a significant turning point in the country's expansion westward. The influx of immigrants to the newly acquired territories further shaped the demographics and culture of the region. The Mexican Cession had a lasting impact on the relationship between the United States and Mexico, and the consequences of this territorial transfer continue to influence politics and society in both countries to this day.

Texas was initially a part of Mexico under Spanish rule but later gained independence in 1836 following the Texas Revolution. The Republic of Texas was formed, and it remained an independent nation for nearly a decade. In 1845, Texas joined the United States as the 28th state, following a period of negotiations between Texas and the U.S. government. The annexation of Texas was a contentious issue, as it led to tensions between the United States and Mexico and ultimately contributed to the outbreak of the Mexican-American War in 1846. Through the Treaty of Guadalupe Hidalgo in 1848, Mexico formally ceded all claims to Texas, as well as the Mexican Cession territories mentioned earlier, to the United States. Texas played a pivotal role in the expansion of the United States and in shaping the development of the American West. The history of Texas reflects a complex interplay of colonization, independence, and territorial disputes that have left a lasting legacy on the state's cultural identity and its place within the United States.