Lewis and Clark Expedition

The Lewis and Clark Expedition from August 31, 1803, to September 25, 1806, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. In the 1970s, the federal government memorialized the winter assembly encampment, Camp Dubois, as the start of the Lewis and Clark voyage of discovery and in 2019 it recognized Pittsburgh, Pennsylvania as the start of the expedition.[1] The expedition made its way westward, and crossed the Continental Divide of the Americas before reaching the Pacific Coast. The Corps of Discovery was a select group of U.S. Army and civilian volunteers under the command of Captain Meriwether Lewis and his close friend Second Lieutenant William Clark.

For other uses, see Lewis and Clark (disambiguation).

Route of the expedition

President Thomas Jefferson commissioned the expedition shortly after the Louisiana Purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an American presence in this territory before Britain and other European powers tried to claim it. The campaign's secondary objectives were scientific and economic: to study the area's plants, animal life, and geography, and to establish trade with local American Indian tribes. The expedition returned to St. Louis to report its findings to Jefferson, with maps, sketches, and journals in hand.[2][3]

Overview

One of Thomas Jefferson's goals was to find "the most direct and practicable water communication across this continent, for the purposes of commerce." He also placed special importance on declaring US sovereignty over the land occupied by the many different Indian tribes along the Missouri River, and getting an accurate sense of the resources in the recently completed Louisiana Purchase.[4][5][6][7] The expedition made notable contributions to science,[8] but scientific research was not the main goal of the mission.[9]

During the 19th century, references to Lewis and Clark "scarcely appeared" in history books, even during the United States Centennial in 1876, and the expedition was largely forgotten.[10][11] Lewis and Clark began to gain attention around the start of the 20th century. Both the 1904 Louisiana Purchase Exposition in St. Louis and the 1905 Lewis and Clark Centennial Exposition in Portland, Oregon showcased them as American pioneers. However, the story remained relatively shallow until mid-century as a celebration of US conquest and personal adventures, but more recently the expedition has been more thoroughly researched.[10]

In 2004, a complete and reliable set of the expedition's journals was compiled by Gary E. Moulton.[12][13][14] In the 2000s, the bicentennial of the expedition further elevated popular interest in Lewis and Clark.[11] As of 1984, no US exploration party was more famous, and no American expedition leaders are more recognizable by name.[10]

Timeline
Main article: Timeline of the Lewis and Clark Expedition

The timeline covers the primary events associated with the expedition, from January 1803 through January 1807.

Preparations
Meriwether Lewis and William Clark

For years, Thomas Jefferson read accounts about the ventures of various explorers in the western frontier, and consequently had a long-held interest in further exploring this mostly unknown region of the continent. In the 1780s, while Minister to France, Jefferson met John Ledyard in Paris and they discussed a possible trip to the Pacific Northwest.[15][16] Jefferson had also read Captain James Cook's A Voyage to the Pacific Ocean (London, 1784), an account of Cook's third voyage, and Le Page du Pratz's The History of Louisiana (London, 1763), all of which greatly influenced his decision to send an expedition. Like Captain Cook, he wished to discover a practical route through the Northwest to the Pacific coast. Alexander Mackenzie had already charted a route in his quest for the Pacific, following Canada's Mackenzie River to the Arctic Ocean in 1789. Mackenzie and his party were the first to cross America north of Mexico, reaching the Pacific coast in British Columbia in 1793–a dozen years before Lewis and Clark. Mackenzie's accounts in Voyages from Montreal (1801) informed Jefferson of Britain's intent to control the lucrative fur trade of the Columbia River and convinced him of the importance of securing the territory as soon as possible.[17][18]

Two years into his presidency, Jefferson asked Congress to fund an expedition through the Louisiana territory to the Pacific Ocean. He did not attempt to make a secret of the Lewis and Clark expedition from Spanish, French, and British officials, but rather claimed different reasons for the venture. He used a secret message to ask for funding due to poor relations with the opposition Federalist Party in Congress.[19][20][21][22] Congress subsequently appropriated $2,324 for supplies and food, the appropriation of which was left in Lewis's charge.[23]

In 1803, Jefferson commissioned the Corps of Discovery and named Army Captain Meriwether Lewis its leader, who then invited William Clark to co-lead the expedition with him.[24] Lewis demonstrated remarkable skills and potential as a frontiersman, and Jefferson made efforts to prepare him for the long journey ahead as the expedition was gaining approval and funding.[25][26] Jefferson explained his choice of Lewis:

It was impossible to find a character who to a complete science in botany, natural history, mineralogy & astronomy, joined the firmness of constitution & character, prudence, habits adapted to the woods & a familiarity with the Indian manners and character, requisite for this undertaking. All the latter qualifications Capt. Lewis has.[27]

In 1803, Jefferson sent Lewis to Philadelphia to study medicinal cures under Benjamin Rush, a physician and humanitarian. He also arranged for Lewis to be further educated by Andrew Ellicott, an astronomer who instructed him in the use of the sextant and other navigational instruments.[28][29] Lewis, however, was not ignorant of science and had demonstrated a marked capacity to learn, especially with Jefferson as his teacher. At Monticello, Jefferson possessed an enormous library on the subject of the geography of the North American continent, and Lewis had full access to it. He spent time consulting maps and books and conferring with Jefferson.[30]

The keelboat used for the first year of the journey was built near Pittsburgh, Pennsylvania, in the summer of 1803 at Lewis's specifications. The boat was completed on August 31 and was immediately loaded with equipment and provisions. Lewis and his crew set sail that afternoon, traveling down the Ohio River to meet up with Clark near Louisville, Kentucky in October 1803 at the Falls of the Ohio.[31][32] Their goals were to explore the vast territory acquired by the Louisiana Purchase and to establish trade and US sovereignty over the Indians along the Missouri River. Jefferson also wanted to establish a US claim of "discovery" to the Pacific Northwest and Oregon territory by documenting an American presence there before European nations could claim the land.[6][33][34][35] According to some historians, Jefferson understood that he would have a better claim of ownership to the Pacific Northwest if the team gathered scientific data on animals and plants.[36][37] However, his main objectives were centered around finding an all-water route to the Pacific coast and commerce. His instructions to the expedition stated:

The object of your mission is to explore the Missouri River, & such principle stream of it, as, by its course and communication with the waters of the Pacific ocean, whether the Columbia, Oregon, Colorado or any other river may offer the most direct & practicable water communication across this continent for the purpose of commerce.[38]

Camp Dubois (Camp Wood) reconstruction, where the Corp of Discovery mustered through the winter of 1803–1804 to await the transfer of the Louisiana Purchase to the United States

The US mint prepared special silver medals with a portrait of Jefferson and inscribed with a message of friendship and peace, called Indian Peace Medals. The soldiers were to distribute them to the tribes that they met. The expedition also prepared advanced weapons to display their military firepower. Among these was an Austrian-made .46 caliber Girandoni air rifle, a repeating rifle with a 20-round tubular magazine that was powerful enough to kill a deer.[39][40][41] The expedition was prepared with flintlock firearms, knives, blacksmithing supplies, and cartography equipment. They also carried flags, gift bundles, medicine, and other items that they would need for their journey.[39][40] The route of Lewis and Clark's expedition took them up the Missouri River to its headwaters, then on to the Pacific Ocean via the Columbia River, and it may have been influenced by the purported transcontinental journey of Moncacht-Apé by the same route about a century before. Jefferson had a copy of Le Page's book in his library detailing Moncacht-Apé's itinerary, and Lewis carried a copy with him during the expedition. Le Page's description of Moncacht-Apé's route across the continent neglects to mention the need to cross the Rocky Mountains, and it might be the source of Lewis and Clark's mistaken belief that they could easily carry boats from the Missouri's headwaters to the westward-flowing Columbia.[42]

Journey

Departure
Corps of Discovery meet Chinooks on the Lower Columbia, October 1805 (Charles Marion Russel, c. 1905)

The Corps of Discovery departed from Camp Dubois (Camp Wood) at 4 pm on May 14, 1804. Under Clark's command, they traveled up the Missouri River in their keelboat and two pirogues to St. Charles, Missouri where Lewis joined them six days later. The expedition set out the next afternoon, May 21.[43] While accounts vary, it is believed the Corps had as many as 45 members, including the officers, enlisted military personnel, civilian volunteers, and Clark's African-American slave York.[44]

From St. Charles, the expedition followed the Missouri through what is now Kansas City, Missouri, and Omaha, Nebraska. On August 20, 1804, Sergeant Charles Floyd died, apparently from acute appendicitis. He had been among the first to sign up with the Corps of Discovery and was the only member to die during the expedition. He was buried at a bluff by the river, now named after him,[45] in what is now Sioux City, Iowa. His burial site was marked with a cedar post on which was inscribed his name and day of death. 1 mile (2 km) up the river, the expedition camped at a small river which they named Floyd's River.[46][47][48] During the final week of August, Lewis and Clark reached the edge of the Great Plains, a place abounding with elk, deer, bison, and beavers.

The Lewis and Clark Expedition established relations with two dozen Indian nations, without whose help the expedition would have risked starvation during the harsh winters and/or become hopelessly lost in the vast ranges of the Rocky Mountains.[49]

The Americans and the Lakota nation (whom the Americans called Sioux or "Teton-wan Sioux") had problems when they met, and there was a concern the two sides might fight. According to Harry W. Fritz, "All earlier Missouri River travelers had warned of this powerful and aggressive tribe, determined to block free trade on the river. ... The Sioux were also expecting a retaliatory raid from the Omaha Indians, to the south. A recent Sioux raid had killed 75 Omaha men, burned 40 lodges, and taken four dozen prisoners."[50] The expedition held talks with the Lakota near the confluence of the Missouri and Bad Rivers in what is now Fort Pierre, South Dakota.[51]

Reconstruction of Fort Mandan, Lewis and Clark Memorial Park, North Dakota

One of their horses disappeared, and they believed the Sioux were responsible. Afterward, the two sides met and there was a disagreement, and the Sioux asked the men to stay or to give more gifts instead before being allowed to pass through their territory. They came close to fighting several times, and both sides finally backed down and the expedition continued on to Arikara territory. Clark wrote they were "warlike" and were the "vilest miscreants of the savage race".[52][53][54][55]

In the winter of 1804–05, the party built Fort Mandan, near present-day Washburn, North Dakota. Just before departing on April 7, 1805, the expedition sent the keelboat back to St. Louis with a sample of specimens, some never seen before east of the Mississippi.[56] One chief asked Lewis and Clark to provide a boat for passage through their national territory. As tensions increased, Lewis and Clark prepared to fight, but the two sides fell back in the end. The Americans quickly continued westward (upriver), and camped for the winter in the Mandan nation's territory.

After the expedition had set up camp, nearby Indians came to visit in fair numbers, some staying all night. For several days, Lewis and Clark met in council with Mandan chiefs. Here they met a French-Canadian fur trapper named Toussaint Charbonneau, and his young Shoshone wife Sacagawea. Charbonneau at this time began to serve as the expedition's translator. Peace was established between the expedition and the Mandan chiefs with the sharing of a Mandan ceremonial pipe.[57] By April 25, Captain Lewis wrote his progress report of the expedition's activities and observations of the Indian nations they have encountered to date: A Statistical view of the Indian nations inhabiting the Territory of Louisiana, which outlined the names of various tribes, their locations, trading practices, and water routes used, among other things. President Jefferson would later present this report to Congress.[58]

Lewis and Clark Meeting the Salish in Ross Hole, September 4, 1805.

They followed the Missouri to its headwaters, and over the Continental Divide at Lemhi Pass. In canoes, they descended the mountains by the Clearwater River, the Snake River, and the Columbia River, past Celilo Falls, and past what is now Portland, Oregon, at the meeting of the Willamette and Columbia Rivers. Lewis and Clark used William Robert Broughton's 1792 notes and maps to orient themselves once they reached the lower Columbia River. The sighting of Mount Hood and other stratovolcanos confirmed that the expedition had almost reached the Pacific Ocean.[59]

Pacific Ocean
Fort Clatsop reconstruction on the Columbia River near the Pacific Ocean

The expedition sighted the Pacific Ocean for the first time on November 7, 1805, arriving two weeks later.[60][61] The expedition faced its second bitter winter camped on the north side of the Columbia River, in a storm-wracked area.[60] Lack of food was a major factor. The elk, the party's main source of food, had retreated from their usual haunts into the mountains, and the party was now too poor to purchase enough food from neighboring tribes.[62] On November 24, 1805, the party voted to move their camp to the south side of the Columbia River near modern Astoria, Oregon. Sacagawea, and Clark's slave York, were both allowed to participate in the vote.[63]

On the south side of the Columbia River, 2 miles (3 km) upstream on the west side of the Netul River (now Lewis and Clark River), they constructed Fort Clatsop.[60] They did this not just for shelter and protection, but also to officially establish the American presence there, with the American flag flying over the fort.[53][64] During the winter at Fort Clatsop, Lewis committed himself to writing. He filled many pages of his journals with valuable knowledge, mostly about botany, because of the abundant growth and forests that covered that part of the continent.[65] The health of the men also became a problem, with many suffering from colds and influenza.[62]

Knowing that maritime fur traders sometimes visited the lower Columbia River, Lewis and Clark repeatedly asked the local Chinooks about trading ships. They learned that Captain Samuel Hill had been there in early 1805. Miscommunication caused Clark to record the name as "Haley". Captain Hill returned in November, 1805, and anchored about 10 miles (16 km) from Fort Clatsop. The Chinook told Hill about Lewis and Clark, but no direct contact was made.[66]

Return trip

Lewis was determined to remain at the fort until April 1, but was still anxious to move out at the earliest opportunity. By March 22, the stormy weather had subsided and the following morning, on March 23, 1806, the journey home began. The Corps began their journey homeward using canoes to ascend the Columbia River, and later by trekking over land.[67][68]

Before leaving, Clark gave the Chinook a letter to give to the next ship captain to visit, which was the same Captain Hill who had been nearby during the winter. Hill took the letter to Canton and had it forwarded to Thomas Jefferson, who thus received it before Lewis and Clark returned.[66]

They made their way to Camp Chopunnish[note 1] in Idaho, along the north bank of the Clearwater River, where the members of the expedition collected 65 horses in preparation to cross the Bitterroot Mountains, lying between modern-day Idaho and western Montana. However, the range was still covered in snow, which prevented the expedition from making the crossing. On April 11, while the Corps was waiting for the snow to diminish, Lewis's dog, Seaman, was stolen by Indians, but was retrieved shortly. Worried that other such acts might follow, Lewis warned the chief that any other wrongdoing or mischievous acts would result in instant death.

On July 3, before crossing the Continental Divide, the Corps split into two teams so Lewis could explore the Marias River. Lewis's group of four met some men from the Blackfeet nation. During the night, the Blackfeet tried to steal their weapons. In the struggle, the soldiers killed two Blackfeet men. Lewis, George Drouillard, and the Field brothers fled over 100 miles (160 kilometres) in a day before they camped again.

Meanwhile, Clark had entered the Crow tribe's territory. In the night, half of Clark's horses disappeared, but not a single Crow had been seen. Lewis and Clark stayed separated until they reached the Yellowstone and Missouri Rivers on August 11. As the groups reunited, one of Clark's hunters, Pierre Cruzatte, mistook Lewis for an elk and fired, injuring Lewis in the thigh.[69] Once together, the Corps was able to return home quickly via the Missouri River. They reached St. Louis on September 23, 1806.[70]

Spanish interference

In March 1804, before the expedition began in May, the Spanish in New Mexico learned from General James Wilkinson[note 2] that the Americans were encroaching on territory claimed by Spain. After the Lewis and Clark expedition set off in May, the Spanish sent four armed expeditions of 52 soldiers, mercenaries, and Indians on August 1, 1804 from Santa Fe, New Mexico northward under Pedro Vial and José Jarvet to intercept Lewis and Clark and imprison the entire expedition. They reached the Pawnee settlement on the Platte River in central Nebraska and learned that the expedition had been there many days before. The expedition was covering 70 to 80 miles (110 to 130 km) a day and Vial's attempt to intercept them was unsuccessful.[71][72]

Geography and science
Further information: List of species described by the Lewis and Clark Expedition
Map of Lewis and Clark's expedition: It changed mapping of northwest America by providing the first accurate depiction of the relationship of the sources of the Columbia and Missouri Rivers, and the Rocky Mountains around 1814

The Lewis and Clark Expedition gained an understanding of the geography of the Northwest and produced the first accurate maps of the area. During the journey, Lewis and Clark drew about 140 maps. Stephen Ambrose says the expedition "filled in the main outlines" of the area.[73]

The expedition documented natural resources and plants that had been previously unknown to Euro-Americans, though not to the indigenous peoples.[74] Lewis and Clark were the first Americans to cross the Continental Divide, and the first Americans to see Yellowstone, enter into Montana, and produce an official description of these different regions.[75][76] Their visit to the Pacific Northwest, maps, and proclamations of sovereignty with medals and flags were legal steps needed to claim title to each indigenous nation's lands under the Doctrine of Discovery.[77]

The expedition was sponsored by the American Philosophical Society (APS).[78] Lewis and Clark received some instruction in astronomy, botany, climatology, ethnology, geography, meteorology, mineralogy, ornithology, and zoology.[79] During the expedition, they made contact with over 70 Native American tribes and described more than 200 new plant and animal species.[80]

Jefferson had the expedition declare "sovereignty" and demonstrate their military strength to ensure native tribes would be subordinate to the U.S., as European colonizers did elsewhere. After the expedition, the maps that were produced allowed the further discovery and settlement of this vast territory in the years that followed.[81][82]

In 1807, Patrick Gass, a private in the U.S. Army, published an account of the journey. He was promoted to sergeant during the course of the expedition.[83] Paul Allen edited a two-volume history of the Lewis and Clark expedition that was published in 1814, in Philadelphia, but without mention of the actual author, banker Nicholas Biddle.[84] [note 3] Even then, the complete report was not made public until more recently.[85] The earliest authorized edition of the Lewis and Clark journals resides in the Maureen and Mike Mansfield Library at the University of Montana.

Encounters with American Indians

One of the primary objectives of the expedition as directed by President Jefferson was to be a surveillance mission that would report back the whereabouts, military strength, lives, activities, and cultures of the various American Indian tribes that inhabited the territory newly acquired by the United States as part of the Louisiana Purchase and the northwest in general. The expedition was to make native people understand that their lands now belonged to the United States and that "their great father" in Washington was now their sovereign.[86] The expedition encountered many different native nations and tribes along the way, many of whom offered their assistance, providing the expedition with their knowledge of the wilderness and with the acquisition of food. The expedition had blank leather-bound journals and ink for the purpose of recording such encounters, as well as for scientific and geological information. They were also provided with various gifts of medals, ribbons, needles, mirrors, and other articles which were intended to ease any tensions when negotiating their passage with the various Indian chiefs whom they would encounter along their way.[87][88][89][90]

Many of the tribes had friendly experiences with British and French fur traders in various isolated encounters along the Missouri and Columbia Rivers, and for the most part the expedition did not encounter hostilities. However, there was a tense confrontation on September 25, 1804 with the Teton-Sioux tribe (also known as the Lakota people, one of the three tribes that comprise the Great Sioux Nation), under chiefs that included Black Buffalo and the Partisan. These chiefs confronted the expedition and demanded tribute from the expedition for their passage over the river.[87][88][89][90] The seven native tribes that comprised the Lakota people controlled a vast inland empire and expected gifts from strangers who wished to navigate their rivers or to pass through their lands.[91] According to Harry W. Fritz, "All earlier Missouri River travelers had warned of this powerful and aggressive tribe, determined to block free trade on the river. ... The Sioux were also expecting a retaliatory raid from the Omaha Indians, to the south. A recent Sioux raid had killed 75 Omaha men, burned 40 lodges, and taken four dozen prisoners."[92]

Captain Lewis made his first mistake by offering the Sioux chief gifts first, which insulted and angered the Partisan chief. Communication was difficult, since the expedition's only Sioux language interpreter was Pierre Dorion who had stayed behind with the other party and was also involved with diplomatic affairs with another tribe. Consequently, both chiefs were offered a few gifts, but neither was satisfied and they wanted some gifts for their warriors and tribe. At that point, some of the warriors from the Partisan tribe took hold of their boat and one of the oars. Lewis took a firm stand, ordering a display of force and presenting arms; Captain Clark brandished his sword and threatened violent reprisal. Just before the situation erupted into a violent confrontation, Black Buffalo ordered his warriors to back off.[87][88][89][90]

The captains were able to negotiate their passage without further incident with the aid of better gifts and a bottle of whiskey. During the next two days, the expedition made camp not far from Black Buffalo's tribe. Similar incidents occurred when they tried to leave, but trouble was averted with gifts of tobacco.[87][88][89][90]

Observations

As the expedition encountered the various American Indian tribes during the course of their journey, they observed and recorded information regarding their lifestyles, customs and the social codes they lived by, as directed by President Jefferson. By western standards, the Indian way of life seemed harsh and unforgiving as witnessed by members of the expedition. After many encounters and camping in close proximity to the Indian nations for extended periods of time during the winter months, they soon learned first hand of their customs and social orders.

One of the primary customs that distinguished Indian cultures from those of the West was that it was customary for the men to take on two or more wives if they were able to provide for them and often took on a wife or wives who were members of the immediate family circle. e.g. men in the Minnetaree [note 4] and Mandan tribes would often take on a sister for a wife. Chastity among women was not held in high regard. Infant daughters were often sold by the father to men who were grown, usually for horses or mules.

They learned that women in Sioux nations were often bartered away for horses or other supplies, yet this was not practiced among the Shoshone nation who held their women in higher regard.[93] They witnessed that many of the Indian nations were constantly at war with other tribes, especially the Sioux, who, while remaining generally friendly to the white fur traders, had proudly boasted of and justified the almost complete destruction of the once great Cahokia nation, along with the Missouris, Illinois, Kaskaskia, and Piorias tribes that lived about the countryside adjacent to the upper Mississippi and Missouri rivers.[94]

Sacagawea
Statue of Sacagawea, a Shoshone woman who accompanied the Lewis and Clark Expedition

Sacagawea, sometimes called Sakajawea or Sakagawea (c. 1788 – December 20, 1812), was a Shoshone Indian woman who arrived with her husband Toussaint Charbonneau on the expedition to the Pacific Ocean.

On February 11, 1805, a few weeks after her first contact with the expedition, Sacagawea went into labor which was slow and painful, so the Frenchman Charbonneau suggested she be given a potion of rattlesnake's rattle to aid in her delivery. Lewis happened to have some snake's rattle with him. A short time after administering the potion, she delivered a healthy boy who was given the name Jean Baptiste Charbonneau.[95][96]

When the expedition reached Marias River, on June 16, 1805, Sacagawea became dangerously ill. She was able to find some relief by drinking mineral water from the sulphur spring that fed into the river.[97]

Though she has been discussed in literature frequently, much of the information is exaggeration or fiction. Scholars say she did notice some geographical features, but "Sacagawea ... was not the guide for the Expedition, she was important to them as an interpreter and in other ways."[98] The sight of a woman and her infant son would have been reassuring to some indigenous nations, and she played an important role in diplomatic relations by talking to chiefs, easing tensions, and giving the impression of a peaceful mission.[99][100]

In his writings, Meriwether Lewis presented a somewhat negative view of her, though Clark had a higher regard for her, and provided some support for her children in subsequent years. In the journals, they used the terms "squar" and "savages" to refer to Sacagawea and other indigenous peoples.[101]

Accomplishments

The Corps met their objective of reaching the Pacific, mapping and establishing their presence for a legal claim to the land. They established diplomatic relations and trade with at least two dozen indigenous nations. They did not find a continuous waterway to the Pacific Ocean[102] but located an Indian trail that led from the upper end of the Missouri River to the Columbia River which ran to the Pacific Ocean.[103] They gained information about the natural habitat, flora and fauna, bringing back various plant, seed and mineral specimens. They mapped the topography of the land, designating the location of mountain ranges, rivers and the many Indian tribes during the course of their journey. They also learned and recorded much about the language and customs of the American Indian tribes they encountered, and brought back many of their artifacts, including bows, clothing and ceremonial robes.[104]

Aftermath
Painting of Mandan Chief Big White, who accompanied Lewis and Clark on their return from the expedition

Two months passed after the expedition's end before Jefferson made his first public statement to Congress and others, giving a one-sentence summary about the success of the expedition before getting into the justification for the expenses involved. In the course of their journey, they acquired a knowledge of numerous tribes of Indians hitherto unknown; they informed themselves of the trade which may be carried on with them, the best channels and positions for it, and they are enabled to give with accuracy the geography of the line they pursued. Back east, the botanical and zoological discoveries drew the intense interest of the American Philosophical Society who requested specimens, various artifacts traded with the Indians, and reports on plants and wildlife along with various seeds obtained. Jefferson used seeds from "Missouri hominy corn" along with a number of other unidentified seeds to plant at Monticello which he cultivated and studied. He later reported on the "Indian corn" he had grown as being an "excellent" food source.[105] The expedition helped establish the U.S. presence in the newly acquired territory and beyond and opened the door to further exploration, trade and scientific discoveries.[106]

Lewis and Clark returned from their expedition, bringing with them the Mandan Indian Chief Shehaka from the Upper Missouri to visit the "Great Father" at Washington City. After Chief Shehaka's visit, it required multiple attempts and multiple military expeditions to safely return Shehaka to his nation.

Legacy and honors

Since the expedition, Lewis and Clark have been commemorated and honored over the years on various coins, currency, and commemorative postage stamps, as well as in a number of other capacities.

Prior discoveries
See also: Timeline of European exploration and Exploration of North America

In 1682, René-Robert Cavelier, Sieur de La Salle went down the Mississippi from the Great Lakes to the Gulf. The French then established a chain of posts along the Mississippi from New Orleans to the Great Lakes. There followed a number of French explorers including Pedro Vial and Pierre Antoine and Paul Mallet, among others. Vial may have preceded Lewis and Clark to Montana. In 1787, he gave a map of the upper Missouri River and locations of "territories transited by Pedro Vial" to Spanish authorities.[107]

Early in 1792, the American explorer Robert Gray, sailing in the Columbia Rediviva, discovered the yet to be named Columbia River, named it after his ship and claimed it for the United States. Later in 1792, the Vancouver Expedition had learned of Gray's discovery and used his maps. Vancouver's expedition explored over 100 miles (160 km) up the Columbia, into the Columbia River Gorge. Lewis and Clark used the maps produced by these expeditions when they descended the lower Columbia to the Pacific coast.[108][109]

From 1792 to 1793, Alexander Mackenzie had crossed North America from Quebec to the Pacific.[110]

gollark: Get Handbrake to do conversion. It's better than playing it and screen recording.
gollark: It isn't their fault. There are ridiculous patent things surrounding H.265.
gollark: As planed.
gollark: That is obviously wrong.
gollark: If 50% is the right answer, then you only have a 25% chance, actually.

See also

Notes
  1. 'Chopunnish' was the Captain's term for the Nez Perce Pass
  2. After Wilkinson died in 1825, it was discovered that he was a spy for the Spanish crown.
  3. An anomaly of some proportion is the fact that the 1814 account, now commonly referred to as the Biddle edition, carried no mention of Biddle anywhere. ... The only logical explanation of this incredible omission is that Biddle wanted it that way, insisted on complete anonymity.
  4. aka the Hidatsa

References
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  2. Woodger, Toropov, 2009 p. 150
  3. Ambrose, 1996, Chap. VI
  4. Miller, 2006 p. 108
  5. Fenelon & Wilson, 2006 pp. 90–91
  6. Lavender, 2001 pp.32, 90
  7. Ronda, 1984 pp. 82, 192
  8. Fritz, 2004 p. 113
  9. Ronda, 1984 p. 9
  10. Ronda, 1984 pp. 327–28
  11. Fresonke & Spence, 2004 pp. 159–62
  12. Moulton, 2004
  13. Ambrose, 1996 p. 480
  14. Saindon, 2003 pp. vi, 1040
  15. Ambrose, 1996 p. 69
  16. Gray, 2004 p. 358
  17. DeVoto, 1997 p. xxix
  18. Schwantes, 1996 pp. 54–55
  19. Rodriguez, 2002 p. xxiv
  20. Furtwangler, 1993 p. 19
  21. Ambrose, 1996 p. 83
  22. Bergon, 2003, p. xiv
  23. Jackson, 1993, pp. 136–137
  24. Ambrose, pp. 98-99
  25. Woodger & Toropov, 2009 p. 270
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  27. "Founders Online: From Thomas Jefferson to Benjamin Smith Barton, 27 February 1803". founders.archives.gov. Retrieved April 12, 2019.
  28. Gass & MacGregor, 1807 p. 7
  29. Ambrose, 1996 pp. 79, 89
  30. Jackson, 1993, pp.86–87
  31. Ambrose, 1996 p. 13
  32. Homser, James Kendall, 1903 p. 1
  33. Kleber, 2001 pp. 509–10
  34. Fritz, 2004 pp. 1–5
  35. Ronda, 1984 p. 32
  36. Miller, 2006 pp. 99–100, 111
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  39. Saindon, 2003 pp. 551–52
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  46. Allen, Lewis & Clark, Vol. 1, 1916 pp. 26–27
  47. Woodger & Toropov, 2009 p. 142
  48. Coues, Lewis, Clark, Jefferson 1893, Vol. 1 p. 79
  49. Fritz, 2004 p. 13
  50. Fritz, 2004 p. 14
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  52. Fritz, 2004 pp. 14–15
  53. Ambrose, 1996 p. 170
  54. Ronda, 1984 pp. 27, 40
  55. Lavender, 2001 p. 181
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  57. Clark & Edmonds, 1983 p. 12
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Bibliography

Primary sources

Further reading
Main article: Bibliography of the Lewis and Clark Expedition
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