The Lewis and Clark expedition purchased more than 260 separate items to supply their journey.

The Lewis and Clark Expedition brought along an estimated 120 gallons of whiskey and still ran out of alcohol halfway through the journey.

Jefferson omitted a plan to go beyond the Louisiana Territory in his funding request

In January of 1803, the president sought $2,500 to fund the expedition (though it likely cost closer to $50,000). The ostensible rationale for the journey was to explore the newly purchased territory, but Jefferson did not mention he wanted Lewis and Clark to go beyond the newly acquired territory for several reasons.

Explore Lewis and Clark's 8,000-mile journey in Google Earth.

The Lewis and Clark expedition lasted over two years

The Corps of Discovery departed St. Louis in May 1804 and returned in September 1806, covering more than 8,000 miles by boat, horseback, and on foot. See a timeline of the journey’s key events.

The Corps of Discovery braved wildlife, weather, and near-starvation

Along their 8,000-mile trek through territory populated by tribes suspicious of their intentions, Lewis and Clark’s party faced many dangers—including grizzly bear attacks, freezing winters, treacherous river crossings, and periods of near-starvation. Watch a 30-minute elaboration of their heroic efforts here.

Jefferson sent Lewis and Clark to map, trade, and secure the West

Beyond seeking a water route to the Pacific, Jefferson tasked the Corps of Discovery with mapping the new Louisiana Territory, cataloging its resources, and establishing trade with Native nations.

Lewis and Clark identified 122 animal species new to science.

Lewis and Clark encountered more than 70 Native tribes during their journey

The Corps of Discovery’s diplomacy ranged from peaceful trade and vital aid from tribes like the Shoshone and Nez Perce to tense standoffs, most notably with the Teton Sioux, who nearly brought the expedition to a halt.

Lewis and Clark’s journey became a blueprint for future exploration

Combining science, diplomacy, and logistics, the Corps of Discovery created a model for later expeditions—from charting the Arctic to NASA’s space missions.

Jefferson’s Lewis and Clark expedition joined the centuries-long hunt for Northwest Passage

For centuries, leaders pursued a direct seafaring trade route from Europe to Asia. Jefferson joined this quest by sending Lewis and Clark west, though they confirmed no such practical interior route existed across the continent.

The Corps traded gifts with many native tribes as a sign of goodwill

They offered peace medals, beads, cloth, and mirrors, while receiving food, horses, furs, and guidance that helped them navigate and survive the western wilderness. This image collection showcases items the expedition collected.

The expedition documented 240 plant species, 178 new to western science

Lewis and Clark’s botanical records introduced species to Americans like bitterroot, ponderosa pine, and Oregon grape—plants unknown to western science at the time. See a selection of these species in this image gallery.

The Lewis and Clark Expedition unexpectedly ran into Sacagawea's long-lost family in the Rocky Mountains.

Lewis brought his loyal Newfoundland dog on the expedition

Meriwether Lewis was accompanied by his dog, Seaman, a Newfoundland who traveled the entire journey—helping hunt, guarding camp, and even rescuing supplies from a river.

The expedition produced the first detailed climate records of the West

Lewis and Clark logged daily temperature, weather, and seasonal patterns throughout their journey, creating the earliest systematic meteorological record for the western territories of the United States. Their observations helped overturn longstanding views that weather west of the Appalachians was similar to the East Coast.

William Clark negotiated one-tenth of all ratified treaties between Native Americans and the US.

Clark’s maps provided the first detailed record of the American West

Covering over 8,000 miles, William Clark’s maps charted rivers, mountains, and tribal territories with remarkable accuracy. Equipped with sextants, compasses, telescopes, and more, Clark became an expert at surveying—requiring extensive celestial and topographical observations each day.

The expedition included Clark’s enslaved servant, York

York, Clark’s enslaved servant, played a full role in the expedition—hunting, scouting, and aiding diplomacy with Native nations who were fascinated by his appearance. Despite his contributions, York remained enslaved for some time after the journey, though its uncertain if he remained so for the rest of his life. Explore every member of the Corps of Discovery here.

Native voices share their histories along the Lewis and Clark National Historic Trail

Tribal historians recount their peoples' histories and perspectives on the Lewis and Clark expedition, offering an Indigenous narrative of the lands, encounters, and legacies that shaped the journey.

George Washington loved to serve ice cream while hosting guests, and spent thousands of dollars on it in a single summer.

A free archive of firsthand historical documents from explorers of America

Maintained by the Wisconsin Historical Society, the American Journeys collection contains more than 18,000 pages of primary source documents—journals, letters, maps, and accounts written between roughly 1000 CE and the early 1800s. These include eyewitness records of the Norse arrival in North America, Spanish conquistador expeditions, and the Lewis and Clark journey. Browse this list of highlights where pages from the original texts are specified (clicking a link opens a PDF).

The Louisiana Purchase nearly doubled America’s size in 1803

Acquired from France for $15M, the Louisiana Purchase added 828,000 square miles to the United States—stretching from the Mississippi River to the Rockies. US ambassadors in France signed the papers to buy the tract from the embattled Napoleon Bonaparte for a mere $15M before Jefferson learned the terms, due to the advantageous nature of the deal.

Discover the 'American Serengeti' Lewis and Clark first recorded

This podcast traces the 19th-century exploration of the Great Plains' biodiversity—beginning with Lewis and Clark's wildlife cataloging and continuing through a century of documenting the Natural West's remarkable species and landscapes.

Sacagawea’s skills and presence were vital to the expedition’s success

The group hired French-Canadian trader Toussaint Charbonneau and his wife Sacagawea to serve as translators. Sacagawea became invaluable to the Corps, as she could speak Shoshone and had a familiarity with the geography of the region. Acting as interpreter and cultural bridge, Sacagawea helped secure Shoshone horses, identified key landmarks, and signaled peaceful intent to other tribes.

Madison urged Jefferson to accept the Louisiana Purchase despite constitutional concerns

As secretary of state, James Madison helped negotiate the 1803 Louisiana Purchase and persuaded Thomas Jefferson to proceed, arguing that the strategic and economic stakes outweighed the unresolved constitutional questions.

Meriwether Lewis grew up in the same neighborhood as Jefferson

Hailing from Jefferson’s Albemarle County neighborhood in Virginia, Lewis was a trusted aide and former Army officer. After leading the Corps of Discovery, he became Louisiana Territory governor in 1806, dying three years later under mysterious circumstances.

Sacagawea endured personal hardships during the expedition

Despite her critical role as interpreter and guide, Sacagawea faced immense challenges on the journey—including caring for her infant and dealing with her abusive husband, Toussaint Charbonneau.

A $50 bet led to the first American coast-to-coast road trip, a journey that cost the driver $260K in today's money.

A tense standoff with the Teton Sioux nearly ended the expedition

In 1804, the Teton Sioux seized a Corps of Discovery boat during a Missouri River meeting, sparking a dangerous standoff. The conflict eased only after careful diplomacy.

Sacagawea's son, Jean Baptiste, who was born during the Lewis and Clark expedition, traveled to Europe as a duke's companion before returning to the American West.

The Erie Canal reduced freight costs by 90%

Before the canal, shipping goods overland cost about $100 per ton. After its completion in 1825, rates fell to just $10—making western farm products competitive in eastern markets for the first time.

How five of the world's most expensive salt and spices are made

Part of the charm of certain spices and salts is their exotic origin, hailing from difficult-to-access locales or hewn via special processes. That also explains why they can be so expensive. Dive into the businesses of producing and marketing five of the world's most expensive food additives with this engaging video.

Explore rare artifacts from the archives at Mount Vernon

This series from Washington's Presidential Library showcases rare books, maps, letters, and artifacts from his collection. It illuminates how he learned, governed, traveled, and understood the world around him.

The first women to run the Colorado River discovered four plant species

Over 45 days and 660 miles, Elzada Clover and Lois Jotter identified more than 50 species in what was the first botanical survey of the region. Expected to help navigate boats and cook for the crew during the day, their work was confined to before dawn and after dusk.

Colonial Americans used tobacco, wampum, and land-backed notes to solve a chronic coin shortage

British coins rarely circulated in the colonies due to an unfavorable trade balance, forcing colonists to improvise. They traded in Spanish dollars, Native American shells, tobacco warehouse receipts, and eventually paper money backed by land rather than gold.

President George Washington's adventurous eating habits included having tongue toast for breakfast and cow stomach for dinner.

King George III assembled a 65,000-volume personal library.

Americans spent an estimated $14.8B for the Fourth of July 2025.

Andrew Jackson kept a 1,400-pound block of cheese in the White House and then let members of the public eat during his final party while in office.

In 2021 US dollars, space shuttles cost $65,400 per kilogram, making them the most expensive spacecraft for payloads greater than 20,000 kilograms.

Americans touring the Louvre were inspired to create their own grand museums

The one-time royal residence was first transformed into a public museum in 1793 amid the French Revolution. Americans visiting in the early 1800s were both turned off by the aristocratic grandeur and compelled by the open access to the public. James Fenimore Cooper, the author of "The Last of the Mohicans," apparently came and measured the length of galleries.

22 fascinating discoveries of massive gold coin hoards

The gallery highlights major gold coin treasures from ancient to modern times, from the Saddle Ridge hoard in California in the 1800s (now worth $10M) to finds in Baltimore, Kentucky, and more. Each discovery reveals something about the period, with some buried and others left in vaults.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Travel the 363-mile Erie Canal, the waterway that cut freight costs by 90% and opened the American frontier.

Jeff Bezos and Lauren Sanchez reportedly spent between $47M and $56M on their 2025 wedding in Italy

Bezos is no stranger to writing big checks: His Gulfstream G700 jet cost about $80M, while his yacht was reportedly $500M.

See 10 of the artifacts on display at the Smithsonian's America at 250 exhibition

From Thomas Jefferson's portable writing desk to a first-generation iPod, the National Museum of American History is showcasing 250 objects across all three floors to mark the 250th anniversary of the Declaration of Independence.

A typical weekend at Coachella can cost thousands of dollars

Coachella might be a cutting-edge cultural event, but it doesn't come for free. Beyond the high ticket prices—which typically start around $500—there are other costs, like lodging, food, and libations. This article spotlights four attendees who break down their expenses for the week and why, despite the hefty price tag, they were so interested in heading to the desert.

Watch what would happen if you literally had all the money in the world.

The cuisine of the Mount Everest base camps

Depending on their budget, Mount Everest climbers are either eating canned meats and hearty vegetables or a more elaborate menu with additions like protein powder and chia seeds. Fresh food flies to the base camp every day by helicopter.

A look at the foods eaten by astronauts during and after the space race

After John Glenn became the first American to demonstrate that eating in space was possible by eating apple puree out of a tube, meals were prepared for astronauts to meet an approximately 2,800-calorie-a-day requirement via freeze-dried foods. Meal quality gradually improved throughout the Apollo program, including the Apollo 8 crew's nondehydrated Christmas meal in 1968.