1. Chapter 9 The Era of Thomas Jefferson 1800-1815 Section 2: The Louisiana Purchase
LEQ:
What was the importance of the purchase and exploration of the Louisiana Territory?

2. What you will do
Describe how the United States purchased the Louisiana Territory.
Explain Jefferson’s dilemma with purchasing the Louisiana Territory.
Discuss Lewis and Clark’s expedition.

3. What you will Know
Expedition Meriwether Lewis William Clark Louisiana Purchase Pinckney Treaty

4. Background Knowledge
In the previous section, we learned how Jefferson focused on reducing the size of the federal government.
In this section, we will learn how he expanded the country’s border to the west

5. The Nation Looks West The Nation Looks West By 1800…
More than 1 million settlers lived between…
The Appalachian Mountains and the Mississippi River
Most settlers were farmers
The Great Mississippi River
A way for the settlers to ship their goods to…
The Port of New Orleans
Then shipped to the markets in the East
Controlled by Spain

6. The Nation Looks West The Pinckney Treaty of 1795 Crisis of 1801
To guarantee the Americans’ right to ship their goods down the Mississippi to New Orleans
Crisis of 1801
Spain had secretly given New Orleans and the rest of the Louisiana Territory to France
Problem…
Jefferson feared…
Napoleon's advancement in North American
Westward expansion would be blocked

7. Buying Louisiana In 1802 Outcome… A surprise offer
The Spanish Governor withdrew the right of Americans to ship goods through New Orleans
Outcome…
A surprise offer
Jefferson sends…
James Monroe and Robert Livingston to Paris
To buy New Orleans and the territory to the east

8. Buying Louisiana A surprise offer continued… While in Paris
Monroe and Livingston learned…
The Haitians expelled the French
France and Britain are on the verge of war
Napoleon needs money
In 1803, France offers the U.S.
New Orleans and the entire Louisiana Territory
Gulf of Mexico to Canada
From the Mississippi to Rocky Mountains
For $15 million or 4₵ per acre
Louisiana Purchase

9. Buying Louisiana Jefferson’s Dilemma with the Louisiana Purchase
The Constitution nowhere states that the President has the power to buy land from a foreign country
Outcome…
Congress approves and votes to pay for the land

10. Lewis and Clark Explore the West
In January of 1803
Jefferson convinces Congress to fund an expedition
Led by Meriwether Lewis and William Clark
Task
To report back on…
Geography
Plants
Animals
Other natural features of the region
To make contact with Native Americans living in the Louisiana territory

11. Lewis and Clark Explore the West
Into the Unknown
May of 1804
Lewis and Clark leave St. Louis and head up the Missouri River
With three boats and 40 men
November of 1805
Lewis and Clark reach the Pacific Ocean

12. Lewis and Clark

14. Activity
Create a tweet for each leg of Lewis and Clarks expedition showing their excitement and concerns.
Tweets should be addressed to President Jefferson
Try to put yourself in their shoes
Imagine how they must have felt as they reached completed each section of their expedition.

15. Check on Learning Explain the Pinckney Treaty.
What is the significance of the Mississippi River and the Port of New Orleans?
Who was the president responsible for the Louisiana Purchase?
Explain Jefferson’s dilemma.
Name of the two men who were given the task of exploring the Louisiana Territory?
Summary. Use complete sentences to summarize what you learned in this section. Answer the LEQ in your summary.