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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

The Montana artist, known for his realistic portrayals of cowboys and Native American life, began to gain national attention after traveling to New York and establishing connections in the art world. Still, he spent most of his time in Great Falls, Montana, where he completed approximately 4,000 works.

In 1904, the school, featuring players from multiple tribes in Montana and Idaho, won the championship at the 1904 Louisiana Purchase Exposition (also known as the St. Louis World Fair).

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.

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.

Marshall served under Washington in the Continental army, later delivered a memorial address following his death, and chaired the funeral arrangements. He also authored a five-volume, 3,200-page biography, "The Life of George Washington."

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.

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.

Jefferson pushed for the Louisiana Purchase to prevent France or Spain from dominating the western frontier, securing control of the Mississippi River and vast lands that he felt were essential to America’s strategic and economic future.

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.

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.

Niagara falls was once dubbed the “honeymoon capital of the world.” This tradition partially began with a visit by Napoleon's brother Jerome and his wife in 1804.

His biological father, Ted Jorgensen, was a circus performer at the time. He later gave up custody of Jeff and became a bicycle repairman in Phoenix, Arizona. Ironically, the last time Jorgensen saw Jeff as a child was in a Walmart where Jorgensen worked. This video dives into the relationship between Jeff Bezos and his estranged biological father, who passed away in 2015.

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.

In 1912, a four-year-old Louisiana boy went missing for eight months. Contemporary accounts differed in his mother's reaction upon seeing him; some claimed she was overjoyed, others that she didn't recognize him. Shortly after, a second woman claimed the child was hers, though he remained with the first woman. In 2004, DNA analysis determined the child had not been related to the family, suggesting the kidnapping was never solved.

In 1717, the writer's satirical poem "La Henriade" landed him in prison for a year. By 1726, the French government's distaste for his work caused him to leave the country for England, though he returned a few years later. That would be short-lived: In 1734, his "Lettres Philosophiques" sent him packing again, moving to Champagne, then Berlin, then Switzerland, before finally returning to Paris in 1778.

Before his judicial career, Marshall served in a Virginia regiment during the American Revolution, rising to the rank of captain. He fought at Brandywine and Monmouth, endured the winter at Valley Forge, and developed a personal connection with Gen. George Washington.

Legend has it that Boulanger's Paris soup shop was the first modern restaurant, but historian Rebecca Spang found no definitive proof that he ever lived. She did, however, find multiple documents referencing a different 18th-century Parisian, Mathurin Roze de Chantoiseau, as the "creator" of restaurants.

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.

Known as "the father of the American Mule," Washington imported a prized Spanish donkey and bred it with a female horse at Mount Vernon. He promoted mules as stronger, more efficient farm animals, helping spread their use across the South and transforming American agriculture.

In 1797, President John Adams sent Marshall to France amid seizures of American ships. French intermediaries demanded loans and bribes before talks, and Marshall refused. Publication of the dispatches fueled the Quasi-War and elevated his reputation in the United States.

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.

This podcast chronicles Abigail's voyage across the Atlantic to join John in Paris during his diplomatic service, then follows the couple's return to America and their rise to the White House.

The young boy wandered away from his family home and ended up spending the night alone in the Arizona wilderness. A search party of more than 40 people and a helicopter participated in looking for the boy. A dog named Buford eventually found the child and led him back to a ranch, allowing him to soon be reunited with his family. Once the story broke, Buford started receiving an influx of toys and treats from strangers.

Albert Camus' father died when he was less than a year old, leaving his mother, a cleaning woman, and his grandmother to raise him in a poor neighborhood of Belcourt (now Belouizdad). It was an experience he'd reflect on in his unfinished autobiographical novel, "The First Man."

Mike Bezos’ mother made a coat out of cleaning rags for him before he immigrated, assuming that the United States would be very cold. Mike and Jeff told the story of Mike’s journey to the US and early days in America together in this video.

Pierre Charles L'Enfant was an engineer who fought in the American Revolution. George Washington chose him to design the capital for his military service, artistic training, and vision of a monumental national city.

Montpelier was originally known as Mount Pleasant. James Madison inherited his family's Virginia estate in 1801. He expanded the plantation and, after his presidency, lived there full time until his death in 1836.

The author of “Black Boy” and “Native Son” left the United States in 1946 to escape his home country’s racial inequality. In Paris, he explored existentialist ideas and spent time with Simone de Beauvoir and Jean-Paul Sartre. “The Outsider,” a novel he wrote while living in France, embraced many of the philosophy’s central themes.

Appointed secretary of state by John Adams in 1800, Marshall oversaw foreign policy during disputes with France, Britain, and Spain, including support for the Convention of 1800. For about a month in early 1801, he served as both secretary of state and chief justice.