Synchronized swimming dates back to Ancient Rome

Ancient Romans took trips to the coast to beat the heat

When the weather grew too hot in Rome, the city’s elite traveled to coastal spots like the Gulf of Naples, where they’d eat oysters, drink wine, and bathe in thermal pools.

See artifacts from the ancient Olympics at the Met

For nearly a millennium, the ancient Greeks gathered every four years to participate in or watch sports, from footraces to a type of mixed martial art. These events—in some cases known as the Olympics—provided the basis for the modern event, which began in 1896 in Athens.

See third-century mosaics inside a Roman villa, which show gladiator games

Discovered at Nennig, these third-century CE mosaics depict gladiators, animal hunts, and arena musicians. Set in a lavish villa atrium, they likely commemorated games sponsored by the estate’s wealthy owner.

Eleven aqueducts funneled water to Rome's 1 million inhabitants

The Roman Empire's capital city was home to about one million people at its peak and managed to provide running water to many of its homes, fountains, and public baths. This was made possible by the 11 aesthetically grand aqueducts that poured into ancient Rome from the countryside.

The high-tech mechanisms of the Roman Colosseum

The Roman Colosseum is one of the most iconic amphitheaters in the world and still partially stands today. Aside from its sheer size, the arena was equipped with some of the most high-tech engineering from the classical world, including sophisticated lifts, a huge retractable awning, and an underground network of tunnels, elevators, and trapdoors.

Horse diving was a popular attraction for 50 years

The event, which took place in Atlantic City, is exactly as it sounds: horses, directed by (sometimes scantily clad) riders, would jump from diving boards into pools. Although it was a popular spectacle for decades, it fell out of favor by the late 1970s.

How ancient Romans invested and worked

The first stock exchange didn't open for business until the early 1600s, but that didn't stop the Ancient Romans from working and investing their money centuries before. While Romans are better known for their political inventions than their economic ones, understanding how they viewed money can help paint a better picture of the Roman mindset that created systems like democracy. Read this article to learn more.

A reading of ancient Rome's best graffiti

Graffiti has been surprisingly common throughout history, and even the grandeur of ancient Rome's walls wasn't spared. This clever and funny video reads through some of the more notable messages relayed via graffiti in ancient Rome, from tidbits of wisdom like "A small problem gets larger if you ignore it" to more unsavory observations of lovers, friends, and enemies.

Swimming in schools helps some fish conserve energy in turbulent flows

Scientists studying groups of giant danios swimming in turbulent waters found that the fish used up to 79% less energy than they did when swimming individually in the same conditions. The same fish were found to use the same amount of energy in turbulent and calm water when in schools.

Visualize ancient Rome in 3D with this aerial view

Researchers have compiled meticulous representations of ancient Rome in this video game-like depiction of the Eternal City from the air. For eight minutes, viewers can take in what Rome looked like two millennia ago, from the terracotta-topped homes to the Forum and Colosseum.

Gladiators fought in specialized armatures designed only for the arena

This illustrated guide breaks down the most common gladiator armatures, showing how each was highly stylized for spectacle rather than warfare. This explanation suggests why gladiators generally made poor soldiers when drafted into the legions.

The story of Sporus, the castrated boy who married Emperor Nero

Ancient Romans’ views of homosexuality are quite different from Western understandings. Nero was an emperor is infamous for his cruelty, and appears to have heaped that cruelty upon Sporus, a boy he fell for and married in a public ceremony. As a slave, Sporus was held captive at the whims of Nero and subject to the class-based rules on same-sex relationships in ancient times.

Watch the Space Olympics from the International Space Station

From "synchronized space swimming" to "weightless sharpshooting," crew members in 2021 competed in microgravity versions of events from the summer Games. The "lack-of-floor routine" featured mid-air gymnastics as astronauts floated through space station modules.

Ancient Greek and Roman sculptures were likely colorful, not white

Archaeologists stumbling upon statues from ancient Greece often found weathered creatures, their faces and figures marred by age and conflict. But evidence of polychromy—painting sculptures with color—has continued to mount.

Ancient ghost stories appeared in texts like 'The Odyssey'

Sharing ghost tales has been around for centuries. Ancient Mesopotamia, Rome, and Greece each had their own chilling stories about encountering spirits. Find mentions of specters in some of history’s most famous writings like the "Epic of Gilgamesh" and "The Odyssey."

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

Saturnalia was a Roman festival that helped shape Christmas

Ancient Romans celebrated Saturnalia in mid-December, honoring Saturn, the god of agriculture, with week-long street festivals. These celebrations featured gift exchanges, lavish meals, and gambling, which was prohibited in public at the time.

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

The 12 tables: Rome's attempt to fairly enforce the law

It's unclear exactly why ancient Romans drafted the Laws of the Twelve Tables in the mid-400s BCE, but the result was a collection of precisely worded, written laws that could be made known to everyone. This article explores the history and importance of these 12 bronze tables, which were an attempt to make the law equally applicable to all and were destroyed when Rome was attacked in 390 BCE.

Child mortality rates since ancient Rome

One of the great achievements of modern humanity has been the sea change in child mortality rates—the chance that a newborn eventually lives past puberty. For thousands of years, children had a 50% chance of not entering adulthood. About 300 years...

Becoming an Olympic swimmer costs tens of thousands of dollars

When you see Olympic athletes win gold, it's the culmination of years of hard work and discipline. But it isn't all sweat equity. Before ever stepping foot on the world stage, these athletes have to pay or find funding for private coaching and lessons, club memberships, and meet fees, with estimates that it costs $25K to $40K to make it to the Olympics.

We can get food poisoning from spending time in swimming pools, lakes, rivers, and ponds

Some of the same pathogens that may sicken us in food or water may also sicken us in recreational swimming environments. Bacteria can rub off of people’s (or animal’s) bodies or contaminate the water through a diarrheal episode. Washing your hands for at least 20 seconds before eating food if you are at the beach, pool, or other similar environments and being sure not to swallow the water are ways to help keep safe.

The ancient Egyptians built prototypes of the modern Suez Canal

The idea to facilitate trade between the Mediterranean Sea and the Red Sea and connect the Eurasian continent was apparent even to pharaohs in the second millennium BCE. Though no physical traces remain, contemporary accounts attest to early, shorter versions of the canal, including from Herodotus.

Bear-baiting was another form of entertainment during Shakespeare’s time

We tend to think of Shakespeare’s audiences as prim and proper, but the Bard’s shows were just another form of amusement, viewed by commoners as entertainment not unlike the animal blood sports that were similarly popular during the time period.

The art of classical rhetoric

Ancient orators snapped human communication in two: the open palm of persuasive rhetoric versus the closed fist of evidence-heavy dialectic. The former seeks to convince the many via one's speech, while the latter seeks the truth in an argument. In ancient Rome, rhetoric had five "canons": invention, arrangement, style, memorization, and delivery. Loading the rhetorical canons in order was meant to help orators craft an effective and impactful speech.

The forgotten carnivals that stood upon the frozen River Thames

The Thames Frost Fairs were unusual winter events that took place between 1607 and 1814. They happened during the so-called Little Ice Age, when the River Thames would freeze over for up to two months straight. These unique festivals transformed the frozen river into a bustling carnival-like environment where Londoners set up temporary shops, entertainment venues, and social spaces directly on the ice.

Carnivals and circuses helped create professional wrestling

Catch wrestling became a fixture of American carnivals, which rose in popularity in the early 20th century. Carnival workers began fixing matches to reduce injuries and earn money from ignorant fans, whom they called "marks."

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.

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

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

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

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

Planarian flatworms are small, aquatic worms with exceptional regenerative capabilities. When cut, the worms can regenerate multiple bodies in a matter of weeks.

In preparation for this weekend's Eurovision finale, which is something like the World Cup of pop music, here's a young Céline Dion performing (for Switzerland?) at the 1988 competition.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

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.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

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.

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

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Human-to-human transmission of hantavirus remains extremely rare, so the 2026 hantavirus cruise ship outbreak doesn't mean we're facing a COVID-style pandemic risk.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

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

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.