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Interesting US History
A Website Devoted to Interesting Events in U.S. History

 

 
 

 

ON THIS DAY IN UNITED STATES HISTORY

August 31, 1803

Lewis and Clark Leave Pittsburgh, PA
On Their Expedition to the Pacific Ocean

On this day in 1803, the Lewis and Clark expedition began when they left Pittsburgh, PA, heading West to the Pacific and Lewis made his first diary entry.

The purpose of the expedition was to determine what was obtained in the Louisiana Purchase and study the Indian tribes, geology, terrain, and wildlife.