may 14, 1804 - Lewis and Clark Expedition

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The Lewis and Clark Expedition, conducted from 1804 to 1806, was a landmark journey commissioned by President Thomas Jefferson following the Louisiana Purchase, aimed at exploring the newly acquired western territory of the United States. Led by Meriwether Lewis and William Clark, the expedition traveled from St. Louis, Missouri, to the Pacific Coast and back, gathering valuable information about the geographic and biological diversity of the region, establishing relations with Native American tribes, and asserting American presence in the West.

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