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Chapter 3 The Lewis and Clark Expedition 刘易斯和克拉克探险队

Chapter Three The Lewis and Clark Expedition

In 1803 the United States President, Thomas Jefferson, bought the Louisiana territory from France.

He paid 15 million dollars for this immense piece of land.

President Jefferson liked science. It was very interesting.

He wanted to learn about the plants and animals of the new territory.

In May 1804 President Jefferson asked Meriwether Lewis and William Clark to explore the Louisiana Purchase.

Lewis and Clark were the first white men to see this land.

This important expedition began in St. Louis, Missouri.

About 50 men traveled up the Missouri River. They explored the territory and made maps.

After six months they stopped and built Fort Mandan.

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