What major factors contributed to the expansion of the U.S. territory in the 19th century? 🔊
Major factors that contributed to the expansion of U.S. territory in the 19th century include the ideology of Manifest Destiny, which held that Americans were destined to expand across North America. Key events like the Louisiana Purchase in 1803 and the Annexation of Texas in 1845 significantly increased land holdings. The Mexican-American War (1846–1848) further expanded U.S. territory, resulting in significant land acquisitions, including present-day California, Arizona, and New Mexico. Additionally, the discovery of gold and other resources spurred migration and settlement, accelerating westward expansion and solidifying the concept of a transcontinental nation.
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