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The Lewis and Clark expedition, initiated by President Thomas Jefferson following the Louisiana Purchase, was a pivotal exploration that mapped the Western United States, engaged with Native American tribes, and collected valuable scientific data. Despite not finding a water route to the Pacific, the journey of the Corps of Discovery, led by Meriwether Lewis and William Clark, provided significant geographic and cultural insights, shaping America's westward expansion and leaving a complex legacy.
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In 1803, the United States acquired 828,000 square miles of land from France, doubling the size of the nation
Leaders of the Expedition
President Thomas Jefferson commissioned Meriwether Lewis and William Clark to lead the expedition to survey the new lands
Purpose of the Expedition
The Corps of Discovery was tasked with mapping the region, studying its resources, and seeking a water route to the Pacific Ocean
Lewis and Clark extensively prepared for the journey by studying necessary skills and procuring supplies and volunteers
The Corps of Discovery began their journey up the Missouri River in May 1804, recording observations and engaging with Native American tribes along the way
The Corps overwintered at Fort Mandan, where they met Sacagawea, who joined as an interpreter and guide
With the help of Sacagawea's Shoshone tribe, the Corps successfully navigated the Rocky Mountains and reached the Pacific Ocean in November 1805
In March 1806, the Corps began their return journey, exploring different areas before reconvening and completing their journey in September 1806
The Lewis and Clark expedition contributed to the understanding of the Western United States, but also led to displacement and ecological disruption for indigenous peoples
The expedition's diverse team, including Native Americans and a woman, highlights the collaborative nature of the journey and its complex legacy