Lewis and Clark Expedition

Cultural Dictionary

Lewis and Clark expedition definition


A journey made by Meriwether Lewis and William Clark, during the presidency of Thomas Jefferson, to explore the American Northwest, newly purchased from France, and some territories beyond. The expedition started from St. Louis, Missouri, and moved up the Missouri River and down the Columbia River to the Pacific Ocean. The information that Lewis and Clark gathered was of great help in the settlement of the West. (See also Louisiana Purchase.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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WordNet
lewis and clark expedition

noun
an expedition sent by Thomas Jefferson to explore the northwestern territories of the United States; led by Meriwether Lewis and William Clark; traveled from St. Louis to the mouth of the Columbia River from 1803 to 1806 
WordNet® 3.0, © 2006 by Princeton University.
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