The card game Uno was invented by an Ohio barber

Chicago deep-dish pizza arrived in 1943

Pizzeria Uno was the first establishment to sell the concoction, which turned more traditional pizza upside down, with cheese as the base and sauce as the topping. Soon, Uno employees went out on their own, sparking a citywide deep-dish phenomenon.

Magic: the Gathering was inspired by baseball cards

Richard Garfield originally pitched a game publisher on a more complex game about programming robots, but he was told that they were looking for something less expensive and more portable. Inspired by the way baseball cards were collected and traded, he came up with the idea for Magic: the Gathering, which gave players packets of random cards, effectively pieces of the whole game, rather than the entire deck.

How Scrabble got its name

Alfred Butts, a newly unemployed architect during the Great Depression, created Scrabble. But the game was named by James Brunot, who used the word to describe the most common action its players take part in: digging frantically.

A Connecticut man claims he invented the wrap

Bobby Valentine, a Connecticut-based restaurateur, claims that the burrito-inspired item was invented because someone requested a club sandwich on a day when his toaster was broken. Improvising, Valentine threw all the ingredients into a tortilla and put it on a $4 grill.

The board game Candyland was invented for children quarantined in polio wards.

Sudoku was originally called 'Number Place'

While there are earlier variations on the game, the modern version appeared in 1979, though it was then called "Number Place." The game was slightly altered and renamed in Japan.

The Juke 8 was the world's first karaoke machine

Daisuke Inoue invented the machine in 1971 by combining an amplifier, microphone, and 8-track machine, though he never patented it and, as a result, never collected royalties from the billion-dollar industry.

The origins of volleyball in a game called mintonette

Volleyball was invented in 1895 in Massachusetts, USA, by William G. Morgan of the YMCA. He aimed to create a less strenuous alternative to basketball, using elements from basketball, tennis, handball, and baseball. Originally called "mintonette," it was introduced at a YMCA conference and took off. Dive into the history from then until today here.

Before his final answer, the first US ‘Millionaire’ winner called his dad to tell him he’d won

John Carpenter was the first US contestant on “Who Wants to Be a Millionaire?” to win the top prize. Impressively, he did it without using any of his “lifelines,” which could provide hints. Well, that’s not exactly true: Carpenter did use his “Phone a Friend” lifeline, but it was just to let his father know that he’d be winning a million bucks.

The origin of the 'barbershop quartet'

Barbershop is subgenre of acapella, limited to four singers who all play highly specific roles. If you see a particularly inspired quartet, you might even see them in old-timey barber dress, a nod to style's origin: the British barbershop. This brief explainer from Mental Floss breaks down the strange story behind the form and how it traveled overseas to become the music we know today.

It took a month for the Rubik's Cube inventor to solve the cube

The Rubik's Cube is the most popular puzzle toy in the world, with over 350 million sold since its invention in 1975. Originally created as a tool to teach three-dimensional movement, the colorful problem-solving game skyrocketed in popularity, spawning speedcubing competitions and becoming a fixture of global toy culture.

View an illustrated history of Microsoft Solitaire

Included in Windows 3.0 in 1990, to help first-time computer users become familiar with using a mouse, the game featured a dozen unique card back designs. The Windows XP library of preinstalled games added Spider Solitaire, which became the most-played game on Windows PCs by 2005.

Credit for inventing the laser was fought over for nearly three decades

Although Theodore Maiman built the first working laser in 1960, Gordon Gould coined the term earlier. Charles Townes and Arthur Schawlow of Bell Labs filed a patent after Gould came up with the idea and name, but before Gould filed his patent.

'Staunton design' became the universal chess set in 1849

Introduced in London in 1849, Staunton chess pieces featured simple, uniform shapes that made every piece easy to recognize. Endorsed by champion Howard Staunton, the design quickly became the international standard and remains the only style approved for tournament play.

Understanding college basketball's guru, UCLA's John Wooden

John Wooden coached UCLA to an unprecedented 10 NCAA titles, including seven straight from 1967 to 1973. He studied the characteristics that made people successful and, in 1948, created his iconic triangular diagram with 25 common behaviors. This article unpacks the 25-block framework that makes the "Pyramid of Success" and shows how Wooden's off-court wisdom shaped future champs like Bill Walton and Steve Kerr.

Credit reporting's earliest origins in the 1700s resemble a game of telephone, with rural merchants asking their most esteemed neighbors to vouch for them to sleuthing urban lenders

It would be decades before the system evolved into something more formulaic. For instance, New York City's Mercantile Agency—which was created to formalize information and rumors about borrowers, sorting the reports into enormous ledgers—wasn't started until 1841.

‘Mario Bros.’ was a 'Donkey Kong' spin-off

“Donkey Kong” was a big success, spawning a sequel and a Mario spinoff: 1983’s “Mario Bros.,” starring Mario and his brother Luigi. Realizing his hero didn’t resemble a classic carpenter, Miyamoto turned Mario into a plumber and set the brothers loose in a sewer system that resembled the platform-climbing gameplay of “Donkey Kong.” Watch the gameplay below.

The foundation for computer viruses was published after its creator's death

In the late 1940s, Hungarian American mathematician, scientist, and engineer John von Neumann gave a series of lectures where he explained the theoretical framework for a computer program that could replicate itself—the von Neumann Universal Constructor. His lectures were later compiled and published in 1966, nine years after his death from cancer.

In the 1920s, Rockwell worked as a commercial illustrator

After getting his start at Boys’ Life, Rockwell began illustrating advertisements for products like Jell-O and Orange Crush. Below is one of Rockwell’s advertisements for Jell-O, from 1923.

The Wright brothers began as bicycle manufacturers in Dayton, Ohio

In the late 1800s, the duo managed several bike shops in the Dayton, Ohio area, where they would sharpen their teeth in engineering and design. Some of their earliest aviation efforts were funded by their bicycle business and initiated in their bike shops.

Elk Cloner, the first computer virus to spread in public, was written as a practical joke by Richard Skrenta, a Pittsburgh high school student.

Bob Newhart was the first comedian to have a chart-topping album

In 1960, “The Button-Down Mind of Bob Newhart” reached the top of the Billboard charts and stayed there for 14 weeks. A few months later, a sequel, “The Button-Down Mind Strikes Back!,” was released. Both records occupied the top two spots for 30 weeks, a record that stood until 1991, when Guns ‘n’ Roses released their “Use Your Illusion” albums.

A group of daring bootleggers created NASCAR

When Prohibition made alcohol illegal in 1920, it didn’t stop Americans from making and consuming it. The law drove the practice underground. Runners risked their lives to deliver moonshine and began racing among themselves.

The Ohio State–Michigan rivalry has roots in a 19th-century border dispute

Known simply as "The Game," Ohio State and Michigan first played in 1897. The fiercest rivalry in sports has its roots in a 19th-century border dispute—the 1835–36 Toledo War—which stoked state pride long before football intensified the feud.

The prototype for Tinder was created during a 2012 hackathon

By August 2012, Tinder, which was originally called Match Box, had launched on the Apple App Store. Match Group merged Tinder into its portfolio in 2017, the same year it set its sights on acquiring Hinge. Experts say that Match has not been declared a monopoly in part because monopolies are "hard to prove."

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

UNOS oversees the entire US organ donation system

The United Network for Organ Sharing is a private, nonprofit organization that manages much of the US organ donation and transplantation system under a federal contract. Medical urgency, blood type, organ size, and geography of the donor and recipient are all factors determining how someone who needs an organ is matched with someone who donated an organ.

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.

The first robot in literature may have been a 'mechanical man' in 1907's 'Ozma of Oz,' a book in L Frank Baum's 'Wizard of Oz' series.

Exploring the Larry Bird punch that almost changed March Madness

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

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

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

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

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

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.'

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

A vending machine run with Anthropic's AI went out of business after it was convinced to give away items for free and sell a video game console.

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.

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.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

A small portion of The Winstons' 'Amen, Brother,' an obscure '60s gospel record, is the basis for thousands of hip-hop tracks, making it one of the most sampled records ever that's informally known as 'the Amen break.'

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

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

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

Poison ivy's characteristic rash is caused by an allergic response to an oily compound in the plant called urushiol.

Play the role of a student in a game where you try to navigate college and remain debt-free, selecting different income levels, high school experience, race, ethnicity, and more.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Comedy legend Catherine O'Hara, star of 'Schitt's Creek' and 'Home Alone,' quit 'Saturday Night Live' after just one week to return to her old job.