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President Thomas Jefferson writes a letter to Meriwether Lewis, asking him to command an expedition across the Pacific Northwest to the Pacific Ocean. To read a transcript of Jefferson's letter to Lewis, click here.
The United States announces the Louisiana Purchase from France.
William Clark agrees to be co-captain on the expedition.
Lewis and Clark meet in Louisville, Kentucky. Read more about this meeting in the trail today.
Lewis and Clark set up Camp River Dubois, just north of St. Louis, Missouri. While Clark recruits and trains men, Lewis learns as much scientific, geographic, medical, and historic knowledge as he can to prepare for the voyage. To learn more about Camp River Dubois, click here.
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Congratulations, you have found one of the objects for the specimen box!
Lewis and Clark explored this new land, they discovered new species of plants like this native corn. Click here to add the corn to your specimen box or click here for a printable version.