19th-Century North America Political Map: U.S., Texas, Mexico, and Alaska #2103368 (License: Personal Use)

This map visualizes North American geopolitical boundaries circa 1840s-1850s, with the United States in blue, the Republic of Texas in red, the Free Empire of Mexico in dark purple, and British-held Vancouver Island in green; insets show Alaska (brown) and the Republic of Hawaiʻi (cyan). The depiction reflects contested sovereignty during westward expansion, the Mexican-American War, and pre-annexation periods. Geographic labels emphasize key regions central to territorial disputes and diplomatic negotiations of the era.

Used on educational history websites, digital textbooks, or museum exhibits covering U.S. expansion, Manifest Destiny, or 19th-century diplomacy; serves users seeking visual context for treaties like Guadalupe Hidalgo or the Oregon Treaty.