1. The Louisiana Purchase
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2. Explore resources & map the territory
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Objectives
Explore resources & map the territory
Find a good route across the country for trading with Native Americans
Beat other European countries to the land!
Emphasize the U.S.’s control over Native Americans

3. The Lewis and Clark Expedition
Crew
30 U.S. Army volunteers
Led by Meriwether Lewis (Jefferson’s aide) & William Clark (soldier)
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Detail of the mural “Lewis
& Clark at Three Forks” created in the 1910s

4. Native Americans in the West
By the 1800s, the population had shrunk to only a few hundred thousand (mostly due to diseases brought by Europeans)
Lewis & Clark encountered (met) almost 50 tribes on their expedition.
Some tribes had seen Europeans before Lewis & Clark and had traded with them.
Horses had been introduced to Native Americans by European traders.
Before Lewis & Clark, many Native Americans had never seen people with white or black skin.
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Clockwise from top left: Wishrams in a canoe on the Columbia River in 1910| Painting
of a Mandan village from 1833| 1858 painting of Blackfoot chiefs| A Shoshone camp in 1870