How billiard balls catalyzed the 'Plastics Century'

Plastic's history began with an inventor seeking a $10,000 prize offer

In 1869, the first synthetic polymer—celluloid—was created as a substitute for ivory in billiard balls. It became the historical catalyst for the eventual manufacturing of plastics everywhere as an alternative to the depletion of other natural resources, including tortoiseshell and horns.

The history of natural and synthetic plastics

From cheap toys to woolly jumpers, plastic can be found in more products than many people realize. From a chemist's perspective all these things are made of the same class of materials: Polymers. And the distinction between which ones we happen to call "plastics" and which ones we don't is fairly arbitrary.

Watch how plastic products are molded from pellets that began as crude oil

Polyethylene and other plastics are formed by combining ethylene and propylene, which are produced through refining crude oil. These plastics are broken down into pellets called nurdles, or mermaid tears, which are melted and molded to manufacture countless products.

The global plastic crisis in images

For decades we have relied on plastics to keep us safe, insulate our homes, and make sure our food stays fresh. But when does plastic’s life come to an end?

Sir David Attenborough suggested tennis balls be yellow

When you think of tennis, it's the iconic yellow ball, but tennis balls didn't always look like that. This Merchant of Tennis article explores the early tennis balls made from wood in the 1300s, to leather balls, to vulcanized rubber used in the late 1800s. Crucially, Sir David Attenborough worked to broadcast the 1967 Wimbledon Championships in color, leading to tennis balls changing from white to yellow.

The history of the iconic Barbie doll

The 1959 debut of the Barbie doll changed the culture of toys permanently, and its many iterations have come to reflect, in a certain way, the aspirations of women around the world. But Barbie's unrealistic looks and plastic substance have prompted...

Britain’s bottle innovation saved Champagne

Champagne wouldn’t be where it is today without a surprising partner: 17th-century British glassmakers. An energy crisis caused by deforestation—not enough trees to burn—led to the search for an alternative fuel source. Enter coal. The plentiful resource burned much hotter than wood, creating stronger glass that could stand up to the pressure of the carbon monoxide produced by the wine’s second fermentation and solving one of the fledgling industry’s most vexing problems.

When did people start making and using glass?

This article details the search for the ancient origins of glass, a now-common item through which archaeologists can spot histories of trade and innovation. Bronze Age glass was made from crushed quartz instead of sand, and artisans could color glass with materials such as cobalt. These trace metallic add-ons have given scientists a vital clue into the origins of glass, which is currently debated as either Egypt or the Near East.

A Boeing engineer created a next-generation pickleball paddle in the '80s

When Steve Paranto kept losing in the finals of his Pickleball tournaments, he told his dad Arlen the wooden paddles were holding him back. Then-Boeing engineer Arlen used spare composite floor panels to make the first fiberglass Pickleball paddle.

The agricultural origins of paintball guns

The paintball field industry—where players compete in pseudo-battle using the (minimally) harmless guns—is worth over $1 billion annually, and it continues to grow. This fun piece breaks down the relatively recent history of the industry by...

Browse a timeline of the fascinating history of board games in America.

What happens to golf balls after they're used?

With over 1 billion golf balls produced annually, an estimated 300 million to 1.5 billion are lost worldwide. On average, thousands of balls are left behind on each course, often ending up in ponds, forests, and beaches. While many golf courses recover and reuse some of these balls, studies suggest countless remain unretrieved.

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

When bamboo in China was tossed into fire in 200 BCE, there was an explosion. About 1000 years later, around 800 CE, an alchemist searching for secrets to immortality mixed sulfur, charcoal, and potassium nitrate together, leading to gunpowder. That mixture was then packed into bamboo or paper tubes, leading to fireworks.

Bowling was long male-dominated, but women pushed for change through the sport

The sport was often played on lawns attached to breweries and became a leisure activity for folks in taverns—mostly men, in the 1800s. But the game's highly communal nature attracted a more diverse set of participants who pushed for social change.

Thomas Edison created the first strand of electric Christmas lights in 1880

Edison strung electric bulbs outside his laboratory in 1880, and his business partner Edward H. Johnson first wrapped a tree in lights in 1882. It wasn’t until the lights were commercialized in 1917 that they became common in household Christmas decorations.

The centuries-old history of titanium white goes back to the Inca

Titanium white can be found in items ranging from paint to pills. Though it was created in New York in 1908, the pigment was first used hundreds of years earlier by the Inca, according to this article.

Beads are social currency during Mardi Gras

Historians believe krewes started tossing small items, colloquially called "throws," to onlookers sometime in the 1870s or 1880s. Eventually, shiny beads became the norm and were usually given to those offering something in return. (At times, that meant free booze or the flashing of breasts.) The early strings of beads were glass, though by the 1960s most were plastic.

Watch 'I'm Just a Bill' explain how a law gets made

First aired in 1976, "I'm Just a Bill" became a defining civics lesson for generations, using animation and humor to trace the legislative process and cement itself as a lasting piece of US political culture.

Space travel sparked inventions we now use every day

Technologies developed for space exploration produced lasting spinoff innovations—from camera phones to memory foam—displaying how the space race reshaped everyday life here on Earth

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

Diving boards disappeared out of safety, but they don't cause most diving accidents

Bouncy diving boards were widely adopted in backyard and community pools in the 1960s. Reports identifying diving as the primary cause of sports-related spinal accidents exaggerated the role diving boards played (most diving injuries were in lakes, beaches, and rivers) and gave insurers a basis to reduce coverage.

Teddy Roosevelt’s intervention helped save a brutal early version of football

In 1905, President Theodore Roosevelt pressured college leaders to reform football amid public outrage over 18 player deaths. His push led to rule changes—like the forward pass—that reduced violence and ensured the sport’s survival.

The Times Square New Year's ball has been redesigned 8 times

The first iteration was made of iron and wood, weighing in at 700 pounds. The 2025 version is made of 5,280 crystals and 32,256 LED lights and weighs a whopping 12,350 pounds.

In 1924, elephants from the Central Park Zoo marched in Macy's inaugural parade

Enormous balloons didn’t make an appearance until 1927, and the parade wasn’t televised until 1948. But no matter the decade, a visit from Santa Claus has always been a highlight.

How 3D printing inside cells paves the way for microscopic machines

In 2026, scientists in Slovenia developed a method to 3D print a small elephant, several microscopic geometric objects, and barcodes for cell labeling within living human cells, which continued to grow and divide thereafter. The experiment opens the door to fabricating devices within cells to study and manipulate cellular functions.

Medieval elites prized narwhal tusks as mythical “unicorn horns”

During the Middle Ages and the Renaissance, narwhal tusks were believed to be unicorn horns, possessing healing and anti-poisonous properties. Coveted by Europe’s elites, they became royal gifts—with one even presented to Queen Elizabeth I by explorer Martin Frobisher.

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

Massive blooms of microscopic plankton called dinoflagellates produce the neon blue light seen in glowing tides.

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.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

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.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

Watch a 1934 short film starring jazz legend Cab Calloway, a major figure in the Harlem Renaissance's music scene

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

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.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

Watch how viruses like Ebola can spill over from animals to humans—and vice-versa.

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.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

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.

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.

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

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.