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Manifest Destiny

The belief that Americans had the right and the duty to spread across the continent to the Pacific Ocean


Site of Mexican siege and victory against 150 Texans

Battle of San Jacinto

The Texan victory and capture of General Santa Anna


A person of Mexican descent, born in Texas


To add on to one's territory


A ruler with absolute power and authority


The mountain men gatherings to trade fur


An Indian or Mexican cowhand

Lone Star Republic

The nickname given to the independent Texas


To hang without a legal trial


To give away land or property

Treaty of Guadalupe Hidalgo

Treaty between the United States and Mexico that ended the Mexican War

James K Polk

Elected president in 1844, his campaign slogan was "54-40 or fight"

Mexican Cession

Land ceded by Mexico at the end of the Mexican War

Gadsden Purchase

Land the United States paid Mexico $10 million for to fulfill its dream of Manifest Destiny

forty niners

More than 80,000 people who traveled to California in 1849 to seek their fortune in gold


Settlers led by Brigham Young and Joseph Smith, moved to Utah Territory and learned how to survive in the harsh desert climate

Texas Revolution

Texas citizens revolted against the Mexican government and gained their independence

Salt Lake City

City Mormons settled in after traveling west

Sutter's Mill

First place gold was found in California

Santa Anna

Self appointed dictator of Mexico

mountain man

A trapper who explored and hunted in Oregon in the early 1800s


self appointed enforcer of the law


A place where one can be safe from persecution

Bear Flag Republic

Nickname for California when they declared themselves an independent republic in 1846

Rio Grande

The natural feature that forms the southern border of the United States and Mexico

New Mexico Territory

Lands that Mexico controlled including California, Nevada, Utah, and parts of New Mexico, Colorado, and Arizona

Oregon Trail

Route to Oregon used by wagon trains in the 1800s

Louisiana Purchase

Land west of the Mississippi River purchased in 1803 that doubled the size of the United States

Disputed Territory

Area the United States and Mexico both claimed between the Rio Grande and Nueces River

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