The United States acquired approximately 828,000 square miles of land from France, doubling the size of the nation.
This event supports the idea of inevitable expansion as it provided vast new territories for settlement and agriculture, setting a precedent for further expansion.
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Lewis and Clark Expedition
Commissioned by President Jefferson, the expedition mapped the western territories and established American presence.
The exploration and mapping of the western lands demonstrated a national intent to expand and claim new territories.
Missouri Compromise
Legislation that admitted Missouri as a slave state and Maine as a free state, maintaining the balance of power but also opening the western territories to expansion.
This event shows that political mechanisms were put in place to manage expansion, indicating that westward movement was seen as a natural progression.
Indian Removal Act
Signed by President Andrew Jackson, this act led to the forced relocation of Native American tribes to lands west of the Mississippi River.
The removal of Native Americans facilitated American settlement in the west, suggesting that expansion was pursued aggressively by the government.
Oregon Trail Migration
Thousands of American settlers traveled the Oregon Trail to settle in the Pacific Northwest.
The mass migration to Oregon highlights the strong desire and determination of Americans to move westward, driven by opportunities for land and prosperity.
Texas Annexation
Texas joined the United States after gaining independence from Mexico.
The annexation of Texas reflects the expansionist mindset and the belief in Manifest Destiny, reinforcing the idea that westward expansion was inevitable.
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California Gold Rush
The discovery of gold in California attracted hundreds of thousands of settlers.
The rapid population influx into California demonstrates that economic opportunities were a major driving force behind westward expansion, further supporting its inevitability.
