What llama beans can tell us about the Inca Empire

How the great city of Cusco came to be, according to the Inca

The chronicler Inka Garcilaso de la Vega recorded the origin story of the Inka (also spelled Inca) and the founding of Cusco, the capital of the society's great empire. Listen to the Inca origin story in this 4-minute video narrated by a child.

How the Inca used threads to communicate

One of the great mysteries of ancient Peru is that the Inca did not have a system of writing, but communicated with a system of strings tied with knots. This 4-minute video explores its possible uses.

The long history of an ancient Andean beer made from corn

And often chewed before brewed. From dank chicherias in small towns to gourmet big-city restaurants catering to tourists, the traditional fermented-corn beverage chicha is still being drunk throughout the Andes. Read more here.

The decline of the Inca Empire

The Inca Empire was awash with gold, and the Spanish knew it. So what happened next? Read this BBC article to learn what happened during the last days of the Inca Empire.

Rediscovering the Inca Empire

In 1991, anthropologist Johan Reinhard was trekking up the snowy face of a dormant volcano when he came face to face with the mummified remains of a teenager who had been sacrificed to the Incan gods centuries earlier. The story of “Juanita the Ice Maiden” is just one of the riveting tales featured in this four-part series from the popular podcast "History Hit".

Yale returns Inca artifacts to Peru

From the time he came upon Machu Picchu in 1911, Hiram Bingham began removing artifacts and human remains from the site and bringing them back to Yale University. Yale's Peabody Museum held them for 100 years, despite demands by the Peruvian government and the public that they be repatriated. Finally, in 2011, Yale returned thousands of items, including ceramics, jewelry and human skeletons.

Coffee production took off in the 1800s

Coffee production in South America took off in the 1800s, with Brazil establishing itself as the largest global producer in the 1840s. Today, the country grows over one-third of the world's beans and consistently leads in global coffee production, with other Latin American countries like Colombia and Guatemala.

Cacao is a Maya word that survives today

In the 1980s, archaeologists finally deciphered Maya hieroglyphs in part by identifying known words. Maya scholar David Stuart notes that cacao—still used today—was one of the key linguistic anchors that unlocked ancient Maya texts.

The common 'Three Sisters' mound-planting system used by natives

In the 17th century, Native Americans cultivated a three-plant combination of corn, beans, and squash—a symbiotic tradition dating back hundreds of years. The corn allowed the beans to climb, the beans fertilized the plants by extracting nitrogen from the air, and the squash leaves protected the soil and preserved moisture. Learn more about the tradition here.

Cocainenomics

How did Pablo Escobar rise up out of the Medellin barrios to become the CEO of a $4 billion business? This immersive look at the global drug trade spawned by the notorious drug lord, who at his peak controlled 80% of the cocaine supply in the US. This deep dive includes visualizations showing how logistics of drug smuggling evolved over the years and traces the economic impact of the industry.

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

A delicious flavor used to be made from a beaver’s butt

Love vanilla-flavored foods? Well, it was once made from castoreum - a yellowish exudate from the castor sacs of mature beavers. And the FDA regards castoreum as “natural flavoring."

Recent research indicates leprosy was present in the Americas before European settlers

New research published in 2025 upended long-held notions that the disease was introduced to the Americas by European colonizers. Evidence of a lesser-known leprosy-causing bacterium was found in ancient human remains that date back 4,000 years.

Scientists now know why wombats poop cubes

For years, scientists have been wondering why wombat poop is cube-shaped (yes, really). Now, they say they have got to the bottom of the mystery.

Intriguing facts about tomatoes

This episode of the Lunchbox Envy podcast dives deep into the world of tomatoes. Why do they taste nicer in certain settings? Do they "scream"? What are their health benefits? All of these questions and more are answered about the luscious red fruit. Listen and reflect on the historical and cultural significance of the tomato.

Beanless 'coffee' is an eco-friendly alternative

As we consider the role of agriculture in climate change, many people are seeking alternatives to the most resource-hungry crops—coffee included. Are new synthetic alternatives the answer? Startups are exploring beanless “coffee” made in a variety of ways.

Layers of minerals revealed by erosion give Vinicunca its distinct colorations

Located in Peru's Andean mountains, Rainbow Mountain is known for its vibrant colors, which result from layers of minerals such as clay, sandstone, argillite, and limonite exposed over millions of years by rain, snowfall, and strong winds.

Explore Amazon rainforest species in this interactive

Explore plant and animal species from different parts of the rainforest, including the canopy, forest floor, and river basin while learning some general facts specific to the Amazon rainforest.

Scientists used to speculate about life on the moon

In the 17th century, Galileo's observations suggested the moon could be inhabited, leading to fictional speculations about lunar life. In the 19th century, stories were published claiming the discovery of various creatures, including human bats. The Apollo missions in the 20th century explored the possibility of life there, but further exploration showed this idea to be less likely than before.

Cow tongue was once a Thanksgiving delicacy

Cow feet and tongue were sometimes included in mincemeat pies—a popular 18th-century dish. Josefa Hale, who inspired Lincoln to declare Thanksgiving a holiday, said they were “indispensable; but [hoped] this rich, expensive, and exceedingly unhealthy diet will be used very sparingly...”

What you can learn from your last name

Surnames are a powerful source of information, giving insight into one’s ancestral history and cultural heritage. This article explores the specifics, giving examples of how one’s last name reveals one's ethnic background or even what your ancestors did for a living. Discover more about surnames around the world, and reflect on your own personal history.

Lidar's discoveries: 32 forts revealed by the laser tech

Lidar is a cutting-edge tool using lasers from an aircraft to map the elevations of huge swaths of land across the world. This technology has been especially effective in archaeology. It has revealed dozens of lost major historical sites concealed beneath overgrown brush and forests. From Canadian forts to Mayan settlements, check out these 32 significant finds from lidar.

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

Pop Mart is the company behind the viral Labubu toy craze

Labubus, the Chinese collectible toys, are being heralded as the next Beanie Babies. Pop Mart, the company behind the Labubus, is using a few psychological tools to keep the Labubu economy booming.

Ordinary bee larvae can develop into queen bees upon being fed royal jelly

Royal jelly is a protein-rich, yellowish substance produced by worker bees in a honeybee hive. After three days, only a few continue receiving the jelly, which triggers the development of ovaries and other traits not found in workers. The first candidate to emerge becomes queen.

Salvador Dalí had pet anteaters he (supposedly) took on walks

Known for his adept and weird public relations stunts, Dalí kept exotic pets, such as an ocelot named Babou, as well as anteaters. The insectivorous mammal accompanied him on walks (though it may have just been for a photo op) and on talk show appearances.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

One disco producer saw 'Star Wars' four times on its opening weekend and was so inspired that he recorded the album 'Star Wars and Other Intergalactic Funk,' which produced a chart-topping single.

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

Learn more about the history of fireworks, which dates back to an accidental invention during an alchemist's quest for information about immortality.

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.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Explore our favorite visualization of the immense scale of space, from an astronaut to the size of the observable universe

When caught in the mouths of cardinal fish, seed shrimp release glowing, bioluminescent chemicals, which alert predators of the cardinal fish, prompting the shrimp's ejection.

US intelligence allegedly pursued more than 600 schemes to assassinate Cuban revolutionary Fidel Castro.

While atoms are normally made of protons, neutrons, and electrons, exotic ones have been built with antimatter—alternate versions of normal matter that live for fractions of a second and are about a billion times as rare.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

Poison ivy is in the same family as mangoes, cashews, and pistachios—and they all produce oily urushiol in their raw, unprocessed state—but they are typically prepared in ways to avoid causing human discomfort.

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.

The deadliest aspect of volcanic eruptions is often not lava, but pyroclastic flows—avalanches of ash, gas, and rock that can move more than half the speed of sound.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

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.'

Researchers believe the brain consolidates memories, processes emotions, and plans for the future during dream states