Lewis and Clark Timeline with Online Journal Questions
Find out more about the Lewis and Clark expedition by clicking on the links below. The links with the  include an Online Journal question that can be printed or e-mailed to your teacher.
Thomas Jefferson and How it Began
January 1803 -Jefferson chooses Lewis to lead first expedition across American West
January 18, 1803 - Jefferson secretly requests approval from Congress for expedition
February 28, 1803 - Congress grants Jefferson's request
January-June 1803 - Lewis prepares for the expedition
June 19, 1803 - Lewis asks William Clark to share command of expedition
July 4, 1803 - Jefferson announces the Louisiana Purchase
August 1803 - Delayed in Pittsburgh, Pennsylvania, Lewis buys dog
August 31, 1803 - Lewis makes first entry in his journal
October-November 1803 - Men hired for "Corps of Discovery"
December 1803 - Corps spends winter near St. Charles, in present-day Missouri
May 14, 1804 -Corps leaves St. Charles; journey begins
August 20, 1804 - Sergeant Charles Floyd dies close to present-day Sioux City, Iowa
September 7, 1804 - Group encounters first village of prairie dogs
September 14, 1804 - Lewis writes first scientific description of pronghorn
November 2, 1804 - Construction of winter camp Fort Mandan, close to present-day Bismarck, North Dakota
April 7, 1805 - Corps leaves Fort Mandan
April 29, 1805 - Explorers have first encounter with a grizzly bear
June 13, 1805 - Expedition reaches the Great Falls of the Missouri River near what is now Great Falls, Montana
August 17, 1805 - Sacagawea meets the Shoshone chief, her long-lost brother
September 9, 1805 - Camp made at Travelers' Rest before entering the Bitterroots
October 18, 1805 - Clark sights Mount Hood
November 24, 1805 - Explorers vote on location of winter camp
December 7, 1805 - Winter camp, Fort Clatsop, built in present-day Oregon
March 23, 1806 - Departure from Fort Clatsop
June 30, 1806 - Completion of second crossing of Bitterroot Mountains
July 3, 1806 - Corps divides; Lewis takes nine men to explore shortcut to Great Falls, Clark and the others travel down Yellowstone River
July 25, 1806 - Clark carves his name into "Pompeys Pillar"
August 11, 1806 - Lewis accidentally shot by one of his own men; also, makes last entry in his journal
August 12, 1806 - The Corps of Discovery is reunited
August 14, 1806 - Corps arrives back at the Mandan villages
August 17, 1806 - Corps parts company with Charbonneau and Sacagawea at the Mandan camp
September 23, 1806 - Return to St. Louis; journey complete
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