Human sacrifice in the Inca Empire

Human sacrifice reinforced Aztec political control and religious belief

The Aztecs controlled a vast territory through military might and intimidation. One very key tactic of control was the ritual of human sacrifice. While an effective scare tactic, the ritual was also grounded in deeply held beliefs that the world was sustained by blood.

Inti, the Sun God of the Inca

The Incas were polytheistic, worshiping many gods, but Inti was the most powerful one in the pantheon. He was the god of the sun and also ruled over agriculture, fertility, and war. Inti was mainly a benevolent deity, though the Inca believed that solar eclipses meant Inti wasn’t pleased. To appease him, the Inca gave sacrificial offerings including food, white llamas, and even human beings.

Why did the Spanish steal the Inca's mummies?

From inside stone palaces and atop sacred mountaintops, the Inca dead continued to wield incredible power over the living. So much so that the Spanish confiscated them. Read more about the afterlife of these mummies here.

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".

The archaeology of human sacrifice

Human sacrifice appears in cultures around the globe. But how do we know that to be true? Scientists can tell the difference between ritual sacrifice and mass graves better explained by war and political instability. Learn how in this article about...

Inca trail interactive map

Machu Picchu gets all the attention, but it’s definitely not the only Inca ruin in the area. Some dedicated trekkers opt to see the sites through a multi-day hike down the Inca Trail, which spans 26 miles from the Sacred Valley to Machu Picchu and reaches elevations as high as 13,800 feet above sea level. This 3D tour gives a sneak-preview of the ruins along the route, and the intense topography.

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.

What was it like to rebel against the Inca Empire?

The Inca Empire grew to its gargantuan size and became the largest empire in ancient Americas through conquest, annexation, and arranged marriage, approaches that didn't always go over well with locals. Watch this five-minute video to experience a...

Ofrendas are memorial altars constructed to honor deceased loved ones

Each element of the altar is meaningful. There is food and drink to nourish the spirits on their journey, candles to light their way, and incense to protect against evil spirits, among other things.

Scientists are still confused how Machu Picchu was built

Machu Picchu, the 15th-century Inca city high in the Andes, continues to fascinate experts with its mysteries. The methods used to transport and carve its massive stones—some weighing 15 tons—remain unclear. Theories range from hundreds of men dragging the stones to innovative techniques like using expanding wet wooden wedges for precision carving.

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.

What llama beans can tell us about the Inca Empire

Fun fact: Llama bean is just another term for llama poop. Another fun fact: Scientists are using these beans and related microorganisms to learn more about the Inca Empire. Read this article to learn how.

The last Inca grass suspension bridge in Peru

High in the Peruvian Andes, the aging Q’eswachaka bridge sags precariously over the Apurímac River. It has been built and rebuilt continuously for five centuries. Read more about it here.

Mummification in Ancient Egypt transformed a body into a divine statue

Rather than for preservation, the ritual was a means of turning the biological body into an eternal vessel for the top percent of society. With no way to preserve eyes that would shrivel during dehydration, eye sockets were filled with onions or black and white stones.

Guatemala's Day of the Dead tradition fills the sky with colorful kites

In a tradition that has lasted over 3,000 years, Guatemalans launch giant kites into the air on the eve of Day of the Dead. The colorful kites honor the dead and carry messages of hope, love and peace to the world.

Enter the Mayan underworld through this 3-mile cave

Discoveries in Belize's Actun Tunichil Muknal (ATM) cave suggest the cave was once a significant site for sacred Mayan ceremonies in antiquity. New research reveals how the Mayans conducted rituals to re-enact a specific creation myth, often staged in desperate times and aimed to invoke the gods for a "rebirth" amid drought and turmoil. Read more on the enigmatic research here.

Shrunken human heads were once a valuable commodity

In the Ecuadoran Amazon of the 1800s, shrunken human heads had spiritual significance. As outsiders became fascinated by the exotic practice, head shrinking became commercialized, and counterfeit shrunken heads were common. By the mid-1940s, shrunken heads could be traded for guns. (Some users may experience a paywall.)

A town in Peru holds a massive fistfight on Christmas

In Santo Tomás, Peru, Christmas Day features Takanakuy—organized public brawls where residents settle disputes through ritualized fistfights. The tradition, rooted in Andean customs, acts as a communal reset before the new year.

The ritual burns of California forests

Many ecosystems around the world have adapted to regularly occurring wildfires. Some human cultures saw the advantage of such fires and integrated them into their community rituals. Learn about similar tribal traditions looking to better manage California's forests today.

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

Some Colosseum fighters battled wild animals instead of other humans

Not everyone who entered the Colosseum was a gladiator. Learn about the bestiarii—who ranged from trained animal fighters to condemned prisoners—and how their encounters with wild beasts became one of Rome’s most lethal spectacles.

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.

Napa Valley was originally inhabited by the Indigenous Wappo people

Before the wineries, Napa was home to several Indigenous tribes, collectively called the Onasatis or Wappo, who lived and hunted on the land for generations before Spanish missionaries and settlers arrived. Some of their practices, like controlled burns of the dry brush, helped shape the fertility of the land for future agriculture.

Renaming the peak of the Great Smoky Mountains

After two years, the Eastern Band of Cherokee Indians' petition to rename Clingmans Dome, the highest point in Great Smoky Mountains National Park, finally succeeded. In 2023, the peak's title officially returned to its original Indigenous name, Kuwohi, which means "the mulberry place." Read to learn more about the mountain's significance as a sacred site for the Cherokee people, who have used the area for prayer, reflection, and gathering mulberries for medicinal purposes.

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

Indigenous women are murdered at 10 times the rate of all other ethnicities in the US

Murder is the third-leading cause of death among Indigenous women, who are also 2.5 times more likely to experience violence than any other group. More than 4 in 5 Indigenous women have experienced violence in their lifetime.

Mount Vesuvius' ancient Roman eruption may have literally boiled blood

Mount Vesuvius erupted in 79 CE, sending ash and debris far and wide, burying several cities and the people inside them. This article details the various ways the blast killed those in Herculaneum. This seaside town was hit with the same ash and debris as Pompeii, and it was also hit by a wave of volcanic gases estimated to be more than 500° Fahrenheit, about 260° Celcius.

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.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

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

Salvador Dalí believed he was his own dead brother, who had died nine months before he was born

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.

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.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

American short story writer Flannery O'Connor raised 40 peacocks, which became potent symbols for her fiction's elegant violence

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

Apeirophobia is an overwhelming fear of living forever, perhaps stemming from the brain's inability to conceptualize an infinite life.

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.

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

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 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.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day