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Manifest Destiny
The Manifest Destiny was the belief that the expansion of the US throughout the American continents was both justified and inevitable. -
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Manifest Destiny
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Louisiana Purchase
The Louisiana Purchase was a purchase of land in which the U.S. bought about 827,000 square miles of land west of the Mississippi River for $15 million from France. -
Lewis and Clark/Sacagawea
Lewis and Clark were commissioned by Thomas Jefferson to explore the Louisian Purchase. Sacagawea played an important role in diplomatic relations such as talking to chiefs and easing tensions. -
West Florida Annexation
The Republic of West Florida was a republic in the western part of Spanish West Florida for several months during 1810. It was annexed and occupied by the United States later in 1810. -
Red River Cession
The Treaty of 1818 was a treaty signed in 1818 between the United States and the United Kingdom. Britain and the U.S. signed the Treaty of 1818, which established the boundary between U.S. and Canadian territories at the 49th parallel. -
East Florida
The Adams–Onís Treaty of 1819 was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain. -
Webster Ashburton Treaty
The Webster-Ashburton Treaty was a treaty resolving several border issues between the United States and the British North American colonies. It resolved the Aroostook War, which was a dispute over the location of the Maine–New Brunswick border. It also established the border between Lake Superior and the Lake of the Woods. -
Texas Annexation
The Texas annexation was the 1845 incorporation of the Republic of Texas into the United States of America. -
"Remember the Alamo"
"Remember the Alamo" was a battlecry in the Texan's struggle for independence form Mexico. It recalled a desperate fight at the Alamo where the Texans died to the last man. -
Mexican Cession
In February 1848, the U.S. and Mexico signed the Treaty of Guadalupe-Hidalgo. The treaty recognized Texas as a U.S. state, and ceded a large chunk of land to the United States for the cost of $15 million. -
Oregon Territory
The Territory of Oregon was a territory of the United States that existed from August 14, 1848, until February 14, 1859, when the southwestern portion of the territory was admitted to the Union as the State of Oregon. -
"Fifty-four Forty or Fight"
"Fifty-four Forty or Fight" was a slogan that rose when people wanted the Oregon northern border to be the latitude line of 54 degrees, 40 minutes. -
Gadsden Purchase
The Gadsden Purchae was a purchase by the United States in a treaty signed on December 30, 1853 by James Gadsden who was the American ambassador to Mexico at that time.
