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Louisiana Purchase
News of the Louisiana purchase by U.S. president Thomas Jefferson is announced
http://www.history.com/topics/louisiana-purchase -
Missouri River
The Corps of Discovery begin their journey up the Missouri River
http://www.nationalgeographic.com/lewisandclark/journey_leg_1.html -
Mandan & Hidatsa
The Corps of Discovery land near Bismarck, North Dakota where they meet the Mandan and Hidatsa tribes
http://www.nationalgeographic.com/lewisandclark/record_tribes_010_5_3.html -
White Cliffs Region
The Corps of Discovery reach the White Cliffs Region of the Missouri River
http://www.mbmg.mtech.edu/gmr/lewis_clark/lewis_clark-whitecliffs.asp -
End of the Journey
After 2.5 years the Corps reach St. Louis and are national heroes
http://www.smithsonianmag.com/ist/?next=/history/lewis-and-clark-the-journey-ends-110100664/
