Louisiana Purchase
The Louisiana Purchase occurred in 1803.
Encyclopædia Britannica, Inc.
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Encyclopædia Britannica, Inc.Learn more about Manifest Destiny.
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Encyclopædia Britannica, Inc.Learn more about the concept of Manifest Destiny and how it influenced U.S. history.
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Encyclopædia Britannica, Inc.Abraham Lincoln once called the railroad the United States' most important goal.
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Encyclopædia Britannica, Inc.National Hispanic Heritage Month is a monthlong celebration in the United States honoring the history, contributions, and achievements of Hispanic Americans.
