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Louisiana Purchase and Lewis & Clark

Louisiana Purchase and Lewis & Clark

William Clark in Louisiana Purchase and Lewis & Clark

William Clark (1770-1838), a lifelong military man, was asked by his friend Meriwether Lewis to serve as co-leader of the Corps of Discovery on its 1804-1806 round-trip journey across the continent of the Pacific.

Clark lacked formal education but nevertheless became the expedition's primary mapmaker and journal-keeper. Clark, a steady character, provided a perfect balance for Lewis's brilliant but more erratic (and possibly bipolar) personality.

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