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Westward Expantion
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Cotton Gin invented
Eli Whitney's original cotton gin patent, dated March 14, 1794. The modern mechanical cotton gin was invented in the United States of America in 1793 by Eli Whitney -
XYZ Affair
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Louisiana Purchase
The Louisiana Purchase (1803) was a land deal between the United States and France, in which the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River for $15 million. -
Adams-Onis Treaty
The Adams–Onís Treaty of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty, 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. -
Missouri Compromise
The Missouri Compromise was an effort by Congress to defuse the sectional and political rivalries triggered by the request of Missouri late in 1819 for admission as a state in which slavery would be permitted. -
Monroe Doctrine
The Monroe Doctrine was a U.S. foreign policy regarding domination of the American continent in 1823. It stated that further efforts by European nations to colonize land or interfere with states in North or South America would be viewed as acts of aggression, requiring U.S. intervention. -
Battle of the Alamo
The Battle of the Alamo was a pivotal event in the Texas Revolution. Following a 13-day siege, Mexican troops under President General Antonio López de Santa Anna. -
Texas Claims Independence
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Trail of Tears
the Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma -
Texas annexed to U.S.
Polk accomplished this through the annexation of Texas in 1845, the negotiation of the Oregon Treaty with Great Britain in 1846, and the conclusion of the Mexican-American War in 1848 -
Indian Removal Act/Trail of Tears
In 1830 Congress, urged on by President Andrew Jackson, passed the Indian Removal Act which gave the federal government the power to relocate any Native Americans in the east to territory that was west of the Mississippi River. -
Mexican-American War
A war between the U.S. and Mexico spanned the period from spring 1846 to fall 1847. The war was initiated by Mexico and resulted in Mexico's defeat and the loss of approximately half of its national territory in the north. -
Treaty of Guadalupe Hidalgo
officially entitled the Treaty of Peace, Friendship, Limits and Settlement between the United States of America and the Mexican Republic, is the peace treaty signed on February 2, 1848, in the Villa de Guadalupe Hidalg -
California becomes a state
In 1849, Californians sought statehood and, after heated debate in the U.S. Congress arising out of the slavery issue, California entered the Union as a free, nonslavery state by the Compromise of 1850. California became the 31st state -
Gadsden purchase
The Gadsden Purchase is a 29,640-square-mile region of present-day southern Arizona and southwestern New Mexico that was purchased by the United States in a treaty signed on December 30. -
Kansas-Nebraska Act
The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders. -
Agreement of 49th Parallel
By the middle 1840s, the tide of U.S. immigration, as well as a U.S. political movement to claim the entire territory, led to a renegotiation of the agreement.
