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Louisiana Purchase
Description:
Jefferson bought 828,000 square miles from France for $15 million, doubling U.S. territory.
Support:
This vast land deal fueled economic and ideological drives for Westward settlement. -
Lewis and Clark Expedition
Description:
Lewis and Clark mapped the Louisiana Purchase, reaching the Pacific, detailing resources.
Support:
Their reports inspired migration, aligning with Manifest Destiny's call to expand. -
Indian Removal Act
Description:
Congress forced Native tribes west, clearing southeastern lands settlers.
Support:
Government forces prioritized settler expansion, showing a societal push Westward. -
Oregon Trail Migration
Description:
1,000 pioneers traveled 2,000 miles to Oregon, proving mass migration was possible.
Support:
Early migrants' success spurred others, driven by opportunity and ideology. -
Annexation of Texas
Description:
Texas was annexed as a state under Polk, escalating tensions with Mexico.
Support:
Aggressive annexation reflected public and political zeal for territorial growth. -
Mexican-American War Ends
Description:
U.S. gained 1 million square miles via treaty of Guadalupe Hidalgo after war.
Support:
Military victory expanded territory, reinforcing expansionist momentum. -
Homestead Act
Description:
Offered 160 acres free to settlers who improved it for five years.
Support:
Economic incentives drove mass migration, ensuring widespread settlement.