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🧭 The Lewis and Clark expedition

Trace the Corps of Discovery from the Louisiana Purchase and Missouri River to the Pacific and back, while examining Indigenous diplomacy, Sacagawea, York, journals, and the expedition's complicated legacy.

lessons

~30 min

to learn

🏛️ History

subject

Adults

level

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What you’ll learn

A Republic Plans a River JourneyExplain why the expedition had scientific, diplomatic, military, and expansionist purposes.The journey began as a planned government mission in a politically inhabited landscape.
River, Plains, and Winter DiplomacyDescribe how river travel, winter at Fort Mandan, and Indigenous relationships shaped the expedition.The party's progress depended on diplomacy, information, and practical support from Native communities.
Across the Continental DivideTrace the route from the Missouri headwaters across the Rockies to the Pacific.Horses, trails, canoes, and local knowledge made the geographic crossing possible.
What the Expedition RecordedEvaluate the journals and the expedition's legacy while recognizing York, Sacagawea, and Native nations.The records are valuable evidence, but they also reflect unequal power and a particular viewpoint.

Questions this course answers

Which description best captures the expedition's purposes?

The mission combined observation and mapping with diplomacy, military organization, and expansionist aims.

Why were the Mandan and Hidatsa villages important to the expedition?

The party entered an established Indigenous world and depended on relationships and information there.

Put the major stages of the westbound route in order.

The Corps moved from the Missouri upstream, crossed the divide, descended westward rivers, and reached the coast.

Why should a learner read the expedition journals as both evidence and a limited viewpoint?

A source can be useful without being complete or neutral.

Grounded in trusted sources

National Park Service, The Journey of Lewis & Clark - https://www.nps.gov/lewi/learn/historyculture/journey.htm
National Park Service, Lewis & Clark National Historic Trail Basic Facts - https://home.nps.gov/lecl/basic-facts.htm
National Archives, Lewis & Clark Expedition lesson - https://www.archives.gov/education/lessons/lewis-clark
Library of Congress, History of the expedition under the command of Captains Lewis and Clark - https://www.loc.gov/item/rc01001477/
University of Nebraska-Lincoln, Journals of the Lewis and Clark Expedition Online - https://lewisandclarkjournals.unl.edu/
Wikimedia Commons, Lewis and Clark expedition image metadata - https://commons.wikimedia.org/wiki/Category:Lewis_and_Clark_Expedition

Every Wunder lesson is built from real, reputable sources — never invented.

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