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Daniel Boone explores Kentucky for the first time. -
President Thomas Jefferson purchased the Louisiana Territory from France for $15 million dollars.
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Lewis & Clark explored the Louisiana Purchase lands west of the Mississippi River and the Pacific Northwest. -
Congress passes a law to move all Native Americans from the Southeast to the west of the Mississippi River. -
During the Battle of the Alamo, Mexican troops attack the Alamo Mission killing all but two Texans. This action prompted the Texans on in the Texas Revolution. -
The Cherokee Nation is forced to march from the east coast to Oklahoma. Many thousands die along the way. -
People begin to travel west in wagon trains on the Oregon Trail. Around 300,000 people would take the trail over the next 20 years.
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Journalist John O'Sullivan first uses the term "Manifest Destiny" to describe the westward expansion of the United States. -
The Mexican War ends with a US victory. Mexico gives California, New Mexico, Arizona, and other land to America. -
The Gold Rush begins after James Marshall discovered gold at his boss's mill. Word spreads quickly throughout the country and the desperation need for gold rampages. Many people traveled to find gold.