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Cotton Gin invented
Eli Witney, the inventor of the cotton gin. The cotton gin is a machine for separating cotton from its seeds. -
XYZ Affair
The XYZ Affair was a political and diplomatic episode in 1797 and 1798. The XYZ Affair lead to the Quasi-War. -
Louisiana Purchase
led by Meriwether Lewis and William Clark, to explore the territory acquired. Spain signed a secret treaty with France to return Louisiana Territory to France -
Adams-Onis Treaty
The Adams- Onis 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 passed in 1820 admitting Missouri as a slave state and Maine as a free state. -
Monroe Doctrine
Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs. -
Indian Removal Act/Trail of Tears
The Indian Removal Act was signed into law by President Andrew Jackson on May 28, 1830 -
The Battle of the Alamo
The Battle of the Alamo was a pivotal event in the Texas Revolution -
Texas Claims Independence
The Texas Declaration of Independence was the formal declaration of independence of the Republic of Texas from Mexico in the Texas Revolution -
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.
The Texas annexation was the 1845 incorporation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state -
Mexican-American War
Mexican War or the Invasion of Mexico, was an armed conflict between the United States of America and the United Mexican States from 1846 to 1848. -
Agreement of 49th Parallel
the Treaty of 1818 set the boundary between the United States and British North America -
Treaty of Guadalupe Hidalgo
officially entitled the Treaty of Peace, Friendship, Limits and Settlement between the United States of America and the Mexican Republic -
California becomes a state
California became a state on September 9, 1850 -
Gadsden Purchase
The Gadsden Purchase is a 29,670-square-mile region of present-day southern Arizona and southwestern New Mexico that the United States purchased -
Kansas-Nebraska Act
It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
