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Lewis and Clark Expedition
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Jefferson seeks authorization
In secret communication to Congress, President Thomas Jefferson seeks authorization for the expedition. This is the first official exploration of unknown spaces undertaken by the United State Government. Learn more here,,, -
Louisiana Purchase announced
News of the Louisiana Purchase is announced. For $15 million, Jefferson more than doubles the size of the United States. Learn more here.... -
Attend ceremonies
Lewis and Clark attend ceremonies in St. Louis formally transferring Louisiana Territory from France to the United States. Learn more here... -
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Arrive in North Dakota
North of what is now Bismarck, North Dakota, the Corps of Discovery reaches the earth-lodge villiages of the Mandan and Hidatsas. Learn more here... -
Proceed into Montana
They proceed into what is now Montana-farther west than any white man had ever gone on the Missouri. They are astounded by the wildlife. Learn more here... -
Reach the three forks
The expedition reaches the Three Forks of the Missouri, which the captains name the Gallatin ( after Secretary of the Treasury), the Madison (after Secretary of State), and the Jefferson (after President Thomas Jefferson). Learn more here... -
Arrive home
Their last day as the Corps of Discovery. They reach St. Louis. Having been gone nearly two and a half years. Learn more here... -
Lewis takes own life
Traveling on his way home from St. Louis to Washington, Lewis takes his own life. Learn more here....
