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Cotton Gin invented
The modern mechanical cotton gin was invented in the United States of America in 1793 by Eli Whitney (1765–1825). -
xyz affair
a political and diplomatic episode in 1797 and 1798, early in the administration of John Adams, involving a confrontation between the United States and Republican France that led to an undeclared war called the Quasi-War. -
Louisiana Purchase
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. -
Monroe Doctrine
The Monroe Doctrine was a U.S. foreign policy regarding domination of the American continent in 1823. -
Indian Removal Act/Trail of Tears
The Indian Removal Act was passed by Congress on May 28, 1830, during the presidency of Andrew Jackson. -
The Battle of the Alamo
A pivotal event in the Texas Revolution. -
Texas Claims Independence
Many American settlers and Tejanos, or Mexicans who lived in Texas, wanted to break away from Mexico. -
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. The Cherokee people called this journey the "Trail of Tears," because of its devastating effects. -
Texas annexed to U.S.
The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. -
Agreement of 49th Parallel
The Convention respecting fisheries, boundary and the restoration of slaves between the United States of America and the United Kingdom of Great Britain and Ireland, also known as the London Convention. -
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 Hidalgo. -
Mexican-American War
A war between the U.S. and Mexico spanned the period from spring 1846 to fall 1847. -
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. -
California becomes a state
A western U.S. state, stretches from the Mexican border along the Pacific for nearly 900 miles. It's known for its dramatic terrain encompassing cliff-lined beaches, redwood forest, the Sierra Nevada Mountains, Central Valley farmland and the arid Mojave Desert. -
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, 1853 by James. -
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.
