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American Southwest: Overview

Background Information

"Southwest: (region, southwestern United States) historically denoting several geographic areas in turn and changing over the years as the nation expanded. After the War of 1812, the Southwest generally meant Missouri, Arkansas, and Louisiana; after Texas was annexed, it, too, was included. In the wake of the war with Mexico, the Southwest embraced most, but not all, of the territory that was acquired under the Treaty of Guadalupe Hidalgo (1848), including land often considered part of the “West”—i.e., New Mexico, Arizona, and all or parts of Oklahoma, Colorado, Utah, and Nevada, as suited the convenience of the user of the term. It ordinarily excludes California." -  “Southwest”. Encyclopædia Britannica Inc, July 2, 2020.

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