Nail art can be traced back to 5,000 BCE

Archaeologists discovered over 11,000 examples of graffiti in ancient Pompeii

Residents drew various figures and announcements on homes, temples, and walls, much of it preserved by volcanic ash. While some were clearly intended to be artistic, scholars have noted that the ancient graffiti has more in common with social media than with the tags and murals we associate today with the art form.

When did humans start kissing romantically?

This article explores the ancient roots of romantic kissing. Current archaeological evidence dates sexual and romantic lip kissing to about 2,500 BCE. A Mesopotamian clay tablet from the time shares a tale of two deities locking lips. There's also...

Evidence of cancer has been found in a 1.7-million-year-old fossil

Cancer has existed as long as humans have, with some of the earliest evidence found among fossilized bone tumors, human mummies in ancient Egypt, and ancient manuscripts. The oldest example was uncovered in a toe—millions of years old—from an ancestor of modern-day humans.

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

A pottery jar from the Naqada II period is the oldest depiction of a sailboat

The Egyptian artifact, made by the Gerzeh culture from 3650 BCE to 3300 BCE, provides the earliest evidence of humans harnessing wind power in a technological capacity.

What techniques did cave painters use to create their work?

Cave paintings long predate local craft stores and premade paints, so what techniques and tools did cave artists use to create such long-lasting works? This video gallery details how ancient artists inscribed and painted their work on cave walls, specifically the Chauvet cave in France.

The history of skull modification

The ancient Maya people sometimes modified their skulls to appear more conical. Body modification has been a human pastime for literal ages, from piercings to bindings and everything in between. Modifying one's skull shape may have been a way to symbolize status, beauty, belonging, or belief. The health impacts of such practices are still debated. This article explores the history and health impacts of skull modification, also known as artificial cranial deformation.

The history of metallurgy: an interactive timeline

Humans have long been shaping metals into useful tools and aesthetic accessories. By 8,700 BCE, humans already had mastered four types of casting copper. Within a few thousand years, people were combining metals to make the alloy bronze and had...

The pharmaceutical industry evolved, in part, from the discovery of synthetic dyes

In 1856, a chemist accidentally discovered mauveine, the world’s first synthetic dye, while trying to make quinine to treat malaria. The synthetic dyes that followed helped reveal germs under microscopes, paving the way for modern imaging techniques and breakthrough treatments, such as antibiotics.

A history of belly buttons, from dinosaurs to modern dogs

Could dinosaurs have had belly buttons, just like you and me? Some researchers believe they've found evidence the ancient reptiles had the cute scar, a common feature among placental mammals (but which is also found in many more kinds of animals). Dive into their peculiar findings with this fascinating video.

Wedding rings can be traced back to ancient Egypt, where the ring symbolized eternity

The tradition later spread through Greece and Rome, evolving with precious gems during the medieval period. Diamonds became central after De Beers' 1947 "a diamond is forever" campaign, boosting sales by 50% in three years.

A timeline of key events during each period of Egyptian history

This timeline shows the dates, periods, dynasties, and significant events in the history and art of ancient Egypt from the Predynastic Period (before 3100 BCE) to the end of the Roman Period (395 CE).

Psychoactive drugs found in 1,000-year-old bag made of fox noses

Archaeologists in Bolivia have uncovered an ancient bag filled with "amazing goodies" that suggests the owner or owners were well-versed in the properties of psychoactive substances and sourced goods from well-established trade routes. This article details the findings, which shed light on how ancient peoples in the region consumed and obtained psychoactive substances.

Ancient Egyptians developed the first pregnancy test—and scientists tested it in the 1960s

A papyrus from about 1350 B.C.E. discusses a test in which a woman would urinate on wheat and barley seeds over the course of several days. If the barley grows, she's having a male child; if the wheat grows, it's a female child; and if nothing grows, she's not pregnant. Scientists went on to test this theory in 1963 and found that about 70% of the time, the urine of pregnant women did promote growth whereas the urine of nonpregnant women didn't—perhaps due to estrogen levels in the urine.

View this timeline of polio milestones and vaccine development

Polio has a long history in art and medicine, dating back centuries. It includes a representation of an apparent polio survivor with a shriveled leg in ancient Egyptian art. See milestones in the history of polio in this timeline.

Tattoos suppressed during colonization are experiencing a revival

A few decades ago, the distinct facial tattoos worn by Maori people were on the brink of disappearing. Then, Maori artists brought the cultural practice back into the spotlight. This TVNZ story follows one reporter’s mother as, at 59 years old, she receives tā moko from a Maori artist.

A history of manicules, or the little hands in books and posters

Manicules are illustrated hands used in many contexts to point something out, whether by medieval readers to highlight passages or in 19th-century advertising. The hands have a quirky, persistent history, showing up over hundreds of years in everything from Petrarch's books to computer cursors and the US Postal Service's "Return to Sender" stamp.

Why pickles became a thing

Pickles began in Mesopotamia around 2400 BCE as a way to preserve vegetables amid heat (and spoilage). They spread through Egypt, Greece, and Rome, where Julius Caesar reportedly fed pickles to his soldiers, and brining was treated as a culinary art. The technique is broadly useful, as salt and water can extend the shelf life and deepen flavor for almost anything.

See original photos of King Tut's tomb in updated color

The 1922 discovery of King Tutankhamen’s tomb in Egypt revealed new secrets about the civilization to a fascinated world, and the Metropolitan Museum of Art's Harry Burton captured the discovery in 2,800 black-and-white glass negatives. Nearly a century later, a selection of the images were colorized by experts .

Archaeologists race to record ancient Nubia

Long ignored by white archaeologists as a mere footnote, modern scientists are now racing to document what’s left of the African civilization. Evidence of ancient Nubia is at risk of vanishing under environmental, societal, and political pressures. This Undark Magazine article walks you through archaeologists' fight to record ancient Nubia.

Lunar New Year has a rich tradition of visual symbolism

Explore centuries of art related to the holiday—from the dragon robes worn by royalty to the calligraphy symbols thought to bring prosperity and fortune. Ancient artistic practices like woodblock printing, painting, and dance weave together to create the visual language of the Lunar New Year.

Art Deco formally began in France in 1925

The design style—often associated with 1920s New York—is named after the International Exhibition of Modern Decorative and Industrial Arts in Paris, which featured many works in the style, which was already popular in France.

East Asian records of auroras may date back to 10,000 BCE

Ancient texts from Japan, Babylon, and China contain accounts of auroras dating back millennia. Because auroral activity and intensity are driven by periodic ebbs and flows in solar activity, these records allow scientists to identify patterns that may help anticipate particularly dangerous future solar storms.

Pre-coin currencies like shells were subject to counterfeiting

While it is difficult to pinpoint the very earliest form of money that was used, a type of shell called cowrie shells were used as currency as far back as 3300–2000 BCE. These shells were imitated using ivory, bone, clam shells and more.

Samuel O’Reilly patented the tattoo gun in 1891

Before the tattoo gun's invention, recipients sweated while artists slowly tapped or sliced designs into their flesh. The tattoo gun changed the field, helping artists ink clients’ skin at incredible speeds. Inventor Samuel O’Reilly applied the basic idea of an electric pen invented by Thomas Edison to his tattoo gun.

The rise of the museum gift shop

While museum gift shops are commonplace now, they weren’t when the Met opened in 1870. Nevertheless, the museum was one of the first to offer copies of several of their paintings for visitors to display in their own homes. Read about how the museum gift shop has evolved and how they decide what to carry with this look behind the scenes from Artsy.

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

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

Poison ivy was sent to Europe in the 1600s as an exotic, ornamental oddity, where it was purposefully grown in the English royal gardens at Kew, the Faculty of Medicine in Paris, and a few other locations.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

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

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

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

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.

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.

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.

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.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

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

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

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

A century of Billboard issues documenting the evolution of popular music.

In its famous catalog, Sears sold $600 DIY house kits from 1908 through the 1940s, resulting in an estimated 100,000 'Sears and Roebuck homes.'

See how each of the more than two million known species relates to each other—and to common ancestors—in this zoomable tree of life.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.