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Period: to
Lancaster Turnpike
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Clermont
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National Road
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Period: to
Building of the Erie Canal
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Adams-Onis Treaty
U.S. acquires Florida. -
Settling Texas
Americans begin moving into Texas. -
Santa Fe Trail
The trail is first created. Americans begin using the same route soon after. -
Monroe Doctrine
President James Monroe takes a bold stance against European intervention in the western hemisphere. -
Texas Declares Independence
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Texans Win Independence
Treaty is signed, and Texas officially has its independence. -
Oregon Trail
Americans begin using the Oregon Trail to travel west. -
Manifest Destiny
The phrase "Manifest Destiny" is first published by John L. O'Sullivan. -
U.S. Annexes Texas
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Oregon is Acquired
American and British governments agree to split Oregon Country at latitude 49 degrees north. -
Period: to
Mexican-American War
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Gold In California
Gold is found at Sutter's Mill. Gold Rush gets underway. -
Treaty of Guadalupe-Hidalgo
American receive the Mexican Cession. -
Period: to
Gold Rush
Gold rush peaks. -
Gadsden Purchase