Lewis and Clark Expedition are also well known for their military Expedition; this expedition was led by Capt. Meriwether Lewis and Lieut. Their expedition began in the year 1804; when President Thomas Jefferson tasked Meriwether Lewis with exploring lands west of the Mississippi River that comprised the Louisiana Purchase. This expedition of Lewis and Clark is considered one of the major chapters in the history of American exploration. Their expedition began in the year 1804; when President Thomas Jefferson tasked Meriwether Lewis with exploring lands west of the Mississippi River that comprised the Louisiana Purchase.

This commemorative stamp was issued by Grenada in the year 2004 to commemorate the work of Lewis and Clark.

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