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In this section you will learn
that President Jefferson
purchased the Louisiana
territory in 1803 and doubled
the size of the United States.
Jefferson also sent Lewis and
Clark to explore the regions
west of the Mississippi.
In 1800, France and Spain were
negotiating for ownership of
Louisiana territory, a vast
region between the Mississippi
River and the Rocky
Mountains.
Emperor Napoleon Bonaparte of
France, who had gained control of
the Port of New Orleans and the
Louisiana territory, and who was
desperate for money, sold the
entire Louisiana territory in 1803
to the United States for $15
million- about three cents per acre.
The Louisiana Purchase
doubled the size of the United
States.
Artist rendering of Louisiana Purchase in 1804
Jefferson chose Captain
Meriwether Lewis to lead an
exploration into the Louisiana
territory. Lewis in turn
recruited his friend Lieutenant
William Clark to oversee a
volunteer force called the
Corps of Discovery.
Meriwether Lewis
William Clark
The Corps of Discovery came
to be known as the Lewis and
Clark expedition.
FOR UNDERSTANDING
The ______ was a vast region
between the Mississippi River
and the Rocky Mountains
controlled by France and
Spain.
• 1) Louisiana territory
• 3) Gulf of Mexico
• 2) Rocky Mountain
range
• 4) Klondike
Emperor ______ sold the entire
Louisiana territory in 1803 to the
United States.
• 1) Louis XVI
• 3) Constantine
• 2) Charlemagne
• 4) Napoleon Bonaparte
The ______ doubled the size of
the United States.
• 1) French and Indian
War
• 2) Louisiana Purchase
• 3) Lewis and Clark
expedition
• 4) Treaty of Paris
Jefferson chose Captain ______ to
lead an exploration into the
Louisiana territory.
• 1) Zebulon Pike
• 3) William Clark
• 2) John Paul Jones
• 4) Meriwether Lewis
Meriwether Lewis recruited his
friend Lieutenant ______ to
oversee a volunteer force called the
Corps of Discovery.
• 1) William Clark
• 3) James Monroe
• 2) Zebulon Pike
• 4) Daniel Boone
The Corps of Discovery came
to be known as the ______.
• 1) Marine Corps
• 3) Green Mountain
Boys
• 2) Trail Blazers
• 4) Lewis and Clark
expedition
The goal of the Lewis and
Clark expedition was to
establish good relations with
the Native Americans and try
to find a northwest passage
across the United States.
In 1805 Lewis and Clark were
joined by the 17-year-old
Shoshone wife of a French
trapper named Sacajawea who
proved an invaluable
ambassador to other Native
American tribes.
Despite many hardships, the Lewis
and Clark expedition traversed the
United States from the Missouri
River to the Pacific Ocean and
brought back a wealth of scientific
and geographic information. The
expedition also revealed that a
northwest water passage did not
exist.
The Explorer Zebulon
Pike was charged with finding
the sources of the Arkansas
and Red Rivers, and brought
back valuable descriptions of
the Great Plains and the Río
Grande River Valley.
Impact of Western exploration
from 1804-1807
• Accurate maps
• Growth of the fur trade
• Mistaken view of the Great Plains
Map of Lewis and Clark's Track,
Across the Western Portion of
North America, published 1814
FOR UNDERSTANDING
The goal of the Lewis and Clark
expedition was to ______ and try to
find a northwest passage across the
United States.
• 1) rescue Sacajawea
from the French
• 3) establish good
relations with the
Native Americans
• 2) find the source of
the Arkansas and
Red Rivers
• 4) spy on the English
In 1805 Lewis and Clark were joined
by ______ who proved an invaluable
ambassador to other Native
American tribes.
• 1) Sacajawea
• 3) Zebulon Pike
• 2) Pontiac
• 4) a Shoshone chief
Despite many hardships, the Lewis
and Clark expedition traversed the
United States from the Missouri
River to the ______.
• 1) Gulf of Mexico
• 3) Pacific Ocean
• 2) Rocky Mountains
• 4) Alaskan wilderness
The Lewis and Clark expedition
______.
• 1) failed to reach the
Pacific Coast
• 2) was the brainchild
of John Adams
• 3) incorrectly
identified the Great
Plains as deserts
• 4) revealed that a
northwest water
passage did not exist
The Explorer ______ brought back
valuable descriptions of the Great
Plains and the Río Grande River
Valley.
• 1) Zebulon Pike
• 3) William Clark
• 2) Meriwether Lewis
• 4) Daniel Boone
Which was not an impact of
Western exploration from 18041807
• 1) Accurate maps
• 2) Mistaken view of
the Great Plains
• 3) improved relations
with the Spanish
• 4) Growth of the fur
trade