Lewis brought his loyal Newfoundland dog on the expedition

The expedition purchased more than 260 separate items to supply their journey

Preparing for two years in the wilderness, Lewis acquired hundreds of supplies, including medicine, food, weapons, and 63 lbs of pigtail tobacco. The total bill was estimated to be around $2,324 (around $60,000 today).

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.

Lewis and Clark identified 122 animal species new to science

The Corps of Discovery recorded wildlife unknown to Americans, including grizzly bears, pronghorn antelope, and prairie dogs—offering the first detailed descriptions of the West’s diverse and often dangerous fauna.

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 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.

The Corps brought along an estimated 120 gallons of whiskey

To help them through the arduous trek, the Corps of Discovery brought the whiskey alongside wine, brandy, and rum for morale, trade, and medicinal use. Early on in the expedition, the adventurers reported frequent drunkenness.

Sacagawea reunited with her brother during the trip and secured horses for the Corps

Sacagawea, who was captured by another tribe at age 12, discovered during the journey that the Shoshone chief was her brother, Cameahwait. Their reunion led to the Corps obtaining vital horses and guides for the treacherous mountain crossing ahead.

In 1820, a sperm whale sank a ship and inspired 'Moby-Dick'

The Essex's crew hoped to capture sperm oil, a lucrative material found in the heads of sperm whales. However, a whale charged and crashed into the ship. Survivors of the attack drifted at sea for months, and many experienced starvation, dehydration, and cannibalism. The ordeal inspired author Herman Melville.

The Elizabethan pirate hired to find the Northwest Passage

This resource by the Canadian Museum of Natural History explores the life and adventures of Martin Frobisher, an Elizabethan pirate hired to find the then-fabled Northwest Passage, a path across the Arctic Sea that would've allowed for quicker trade between Asia and Eastern Europe. He ventured into arctic waters at least three times, returning to England each time with either fool's gold, captive natives, or fool's gold and captive natives.

How a deadly antarctic expedition turned poisonous

A deadly 1912 scientific expedition to the Antarctic took a turn for the worse when the expedition team's leader turned to man's best friend to fuel their journey. This 21-minute podcast episode provides a glimpse into the real-life dangers of...

Washington systematically introduced and popularized mule breeding in the United States

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.

The Adams family brought the first pets to the White House

When John Adams became the first president to live in the White House, Abigail brought along the family's dogs—making them the first presidential pets to reside there. Abigail was known for her love of dogs.

Husky goes way off track at the Westminster Dog Show

Lobo the Siberian Husky lost an agility competition at the Westminster Dog Show in New York City, but won the hearts of the audience after getting off track.

Buford the Pyrenees showered with gifts after rescuing 2-year-old boy lost in the desert

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.

Before humans, the Soviet Union and the United States sent animals—including apes, dogs, and cats—to space during the Space Race.

The final shots of the Civil War were fired in the Arctic over 2 months after the South's surrender

In June 1865—two months after Lee's surrender—the Confederate raider CSS Shenandoah unknowingly attacked Union whaling ships in the Arctic. When the crew learned the war was over, they sailed 9,000 miles to surrender in Liverpool, England.

Paul Revere rode to Concord to warn rebel leaders of British attack

Revere was a well-known Boston messenger and an excellent horseman, known as a reliable relayer of messages. As Boston’s patriot leaders spread out into the areas around the city in fear of British arrest, Revere turned his skills to aid the revolutionary moment.

The first draft of the classic American novel 'Of Mice and Men' was torn to shreds by John Steinbeck's dog.

Canine inspectors can help detect potential carriers of invasive insects

At ports of entry in the US, Customs and Border Protection agents use dogs to sniff for forbidden foods and other items that are known to harbor invasive pests. Agents also physically inspect items such as flowers to prevent entry by species that may harm US agriculture.

Explore hundreds of the brother’s personal photographs of flights, family and dogs

Their estate offered 300 negatives to the Library of Congress in 1948 after Orville’s death, most of which were taken by the brothers between 1897 and 1928. The collection serves as a visual timeline of their adult lives.

A Navy messman with no gunnery training defended his ship at Pearl Harbor

Doris “Dorie” Miller, a Black Navy messman assigned to steward duties rather than a combat role, seized a .50-caliber machine gun aboard USS West Virginia during the attack. Despite no formal weapons training, he fired until out of ammo—becoming the first African American to earn the Navy Cross.

A thousand medieval dog names

In the Middle Ages, hunting was more than a sport—it was a vocation. Hounds were a crucial element of hunting, and wealthy landowners owned hundreds of them. A scribe in the late 15th century recorded more than 1,000 authentic names given to dogs, prompting a historian to speculate this showed just how well dog-handlers knew their animals. See the names here.

The Army–Navy rivalry has a long history of mascot heists

For decades, spirited cadets and midshipmen have plotted covert missions to steal each other’s mascots—Army’s mule and Navy’s goat—turning the already fierce football rivalry into a game of elaborate pranks and counter-pranks.

Wojtek the bear fought for Poland in World War II

Wojtek was a Syrian brown bear who eventually became a mascot, symbol, and eventually a soldier attached to the Polish II Corps during World War II. Learn about the amazing Wojtek, the Polish II Corps, and the incredible history of the Polish soldiers, many of whom had been imprisoned by the Germans or Soviets, who served during World War II.

Bob Dylan deeply admires Willie Nelson

The Nobel Prize-winning songwriter is a big fan of the country troubadour. When Dylan was asked for his thoughts on Nelson for a New Yorker profile, he offered a poetic monologue not unlike his lyrics, including a comparison to "the invisible air."

Before dynamite was invented, Erie Canal builders blasted rock with gunpowder

Constructed decades before the invention of dynamite, the Erie Canal’s toughest obstacles were blasted through using black powder charges.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

Explore the animals that populate the depths of the ocean, from fish and coral in the first few hundred feet, all the way down to the bottom of the Mariana Trench.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

In 1915, workers recovered a submarine-like vessel from the Chicago River, prompting fears of German espionage

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

The Ramones' 'Pet Sematary,' the theme song for the Stephen King novel of the same name, was written while the band was admiring the writer's collection of horror memorabilia.

The rivalry between Alexander Hamilton and Thomas Jefferson centered on federalism—the question of how much power the federal government should hold relative to the states.

During the French Revolution, a botanist's letter asking about "dear Rhus" (poison ivy) was intercepted, leading authorities to suspect he was conspiring with the Russians.

After her fellow cult members tried to kill her with an LSD-infused hamburger, one member of the Manson Family, the murderous cult led by Charles Manson, decided to testify against the group's leader.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

See the most iconic photos from four decades of LIFE magazine

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

Watch the cumbersome, but necessary, precautions healthcare workers must take to care for and protect themselves while caring for Ebola patients.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.