Lesson ID: 12256
Get the scoop on the biggest land deal in U.S. history—and how it doubled the country for just pennies an acre!
Let’s Make a Deal!
Imagine someone offering to sell you a huge piece of land—almost half a country—for the price of a few video games.
Well, something like that really happened over 200 years ago! A U.S. president made a deal so big that it doubled the size of the United States.
The land included rivers, cities, forests, and farmland that would change the country forever.
You’re about to travel back in time to explore how the Louisiana Purchase made the United States much bigger—and how one smart decision helped shape the future.
Keep reading!
How the U.S. Got a Great Bargain

A Young Country with Big Dreams
The United States was still young in the 1700s.
Although it had just 13 states along the East Coast, the leaders of this new country were dreaming big. They wanted more land, more people, and more chances to grow.

Who Owned the Land?
At the time, a giant area of land called the Louisiana Territory stretched west from the Mississippi River to the Rocky Mountains.
First, it belonged to France. Then, France lost a war and gave the land to Spain in 1763.
Spain secretly gave it back to France in 1802!
Why the U.S. Was Worried
This worried the United States.
Because the Louisiana Territory included two very important places: the Mississippi River and the Port of New Orleans. Farmers and traders used the river to move goods to cities and out to sea.
If France blocked that access, it could hurt the country's economy.

Time to Make a Deal
The president at the time, Thomas Jefferson, had a decision to make.
Jefferson didn't want another war, so he sent people to France to make an offer for just a small part of the land. But to everyone's surprise, the French offered to sell the entire Louisiana Territory!

Why Did France Say Yes?
France needed money fast. They were fighting a war in Europe and had just lost control of a colony in the Caribbean.
So, in 1803, France sold the land to the United States for $15 million—less than five cents an acre!
The Country Doubles in Size
The deal became known as the Louisiana Purchase. It added 828,000 square miles to the country—more than doubling its size.
Today, land from this deal is included in 15 states, including Louisiana, Missouri, Iowa, Kansas, Nebraska, and Colorado.

New Land, New Opportunities
Now, the United States had room to grow. Farmers had new land to plant crops, traders had better access to rivers, and people began moving west to start new lives.
Explore the Expansion
To help you see how much land was added, take a few minutes to explore the Westward Expansion, 1790–1850 | Interactive Map.
Click on the different options and view the changes from 1790 to 1800 to 1810.
As you explore, ask yourself these questions.
How did the United States change after the Louisiana Purchase?
Which states today were once part of that land?
What if this deal had never happened?
Once you're done exploring, head to the Got It? section to review what you've learned and try out a fun practice activity.