Kermit the Frog was originally a lizard—and was made from Jim Henson's jeans

The disastrous meeting of the Muppets and ‘SNL’

The first season of "Saturday Night Live" featured some of the most cutting-edge comedy imaginable. Curiously, it also featured Jim Henson's Muppets. Henson and his singular brand of puppetry had found success with "Sesame Street," but Henson was concerned he was being pigeonholed as a children's entertainer and jumped at the opportunity to appear in a recurring segment on NBC's new program. The result was a bizarre train wreck that's detailed in this comprehensive retrospective.

Optical illusions were a key component in animating the Muppets

Despite being fairly typical puppets, Jim Henson's Muppets often ventured out into the real world without any apparent humans controlling them. That's thanks to several ingenious optical illusions devised by Henson and his partners, including well-placed mirrors, platformed sets, and remote-controlled puppeting.

'Follow your enthusiasm. It's something I've always believed in. Find those parts of your life you enjoy the most. Do what you enjoy doing.'

- "Muppets" creator Jim Henson (1936-1990)

Pepe the Frog went from internet meme to symbol of hate

The character first appeared in 2005, in an online comic called "Boy's Club," inspiring countless memes in which his likeliness was used as a supportive shorthand. Then, people started pairing Pepe with hateful messages, morphing him into something his author never intended.

Parton hosted two separate variety television shows called ‘Dolly’

Parton became a magnetic television performer on “The Porter Wagoner Show,” something that would pay off in dividends later in her career. Both her 1976 show “Dolly” and the 1987 series of the same name featured musical performances from Parton and various guests, along with lighthearted segments featuring contemporary stars. You can watch the fifth episode of 1987 below, with special guest Kermit the Frog.

Big Bird was almost included on the Challenger mission

As part of NASA's early outreach ideas tied to the Teacher in Space program, Sesame Street's Big Bird was briefly considered for a Challenger flight, but the plan was dropped because the oversized costume could not fit safely inside the shuttle.

'Labyrinth' initially flopped

The fantasy movie, directed by Henson and starring David Bowie, exited theaters less than a month after its release. Later, though, the movie would become a cult classic and would inspire many writers and artists to create similarly whimsical worlds.

Watch a medley of Pets.com commercials with the famous sock puppet mascot

Pets.com used a sock puppet decorated like a dog (operated by comedian Michael Ian Black) as the company's mascot. The sock puppet became synonymous with the brand. An auto lender company called BarNone Inc. later purchased the sock puppet for $125K and rebranded it with the slogan "Everybody deserves a second chance."

He made a name with a short story about jumping frogs

Twain’s first big break came with “Jim Smiley and His Jumping Frog,” a fictitious story that appeared in a 1865 edition of the New York Saturday Press. (When it was republished elsewhere, the title was changed to “The Celebrated Jumping Frog of Calaveras County.”) That year, American poet James Russell Lowe called it “the finest piece of humorous literature yet produced in America.”

Liza Minnelli debuted her signature pixie cut in the mid-1960s, transforming her into a style icon

In addition to her performances, Minnelli is known for her glitzy outfits and short black haircut. After starting out with a more conventional look, her style evolved into something more extravagant, mirroring the boldness of her performance and public persona.

Why so many cartoons are yellow

"The Simpsons" creator Matt Groening said he found the skin tones of cartoon characters to be "freakish" and wanted his show to stand apart from everything else on television. His colorist proposed making them yellow, which color theory suggests would make the characters pop off the screen.

Why Steve Jobs always wore the same outfit

Steve Jobs is well-known for his signature outfit: a black mock turtleneck and denim jeans. The outfit originated in Japan, where Jobs observed Sony employees all wearing matching uniforms. He proposed Apple employees do the same, but that idea was rejected. However, he still decided to create his own uniform.

The history of the McDonald's Happy Meal

The McDonald's Happy Meal is the quintessential fast food kids meal, serving up child-appropriate portions and prizes all within a portable, fun container. So where did this pop culture icon begin? Watch this quirky 13-minute history of the Happy...

'Steamboat Willie' was the first film to feature Mickey Mouse

This short film introduced Mickey Mouse, the character who would define the Disney brand, to the world. It might be almost 100 years old, but you'll be surprised at how much humor still holds up.

Don Herbert, better known as 'Mr. Wizard,' was the predecessor to the 'Science Guy'

From 1951 to 1965, the former B-24 bomber pilot performed science experiments that home audiences could replicate on "Watch Mr. Wizard," inspiring about 50,000 Mr. Wizard Science Clubs throughout North America. Subsequent series, including "Mr. Wizard’s World" and "Teacher to Teacher with Mr. Wizard," ran on Nickelodeon until 1996.

The rare 1970s Ken Doll with facial hair

In 1973, Mattel released the Mod Hair Ken Doll. The toy was the first Ken since 1961 to possess "real" rooted hair, plus it came with sideburns, a beard, and two mustaches. For clothes, he wore a brown and white checked jacket, white turtle neck, light brown pants, and brown shoes. Take a look at images of the doll decked out in 1970s fashion for insight into life in another era.

Labubu dolls are based on characters from an illustrated book series

The plush dolls are based on characters from Kasing Lung's "The Monsters" book series. The collectible toys became a sensation when they were first released in 2019, with fans using the dolls as fashion accessories.

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

The 1939 film changed Dorothy's slippers from silver to ruby

Baum’s original book listed the slippers as silver, but the filmmakers wanted the shoes to pop on film—and highlight their use of Technicolor—so they turned them ruby. The slippers wound up becoming one of the movie’s most iconic elements.

Watch Salvador Dalí's surreal appearance on 'The Dick Cavett Show'

During this 1971 talk show episode, Dalí enters the stage with his pet anteater, flinging it onto an actress' lap. He proceeds to talk strangely about the significance of anteaters and his mustache. Many argue such public appearances were examples of Dalí's performance art, where he made real interactions surreal.

Dylan was born Robert Zimmerman

The name change was just one facet of his self-created myth. From the moment he arrived in Greenwich Village’s folk scene, he was crafting tall tales about his life, including a claim that he'd spent the previous six years working for a carnival.

‘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.

See the early concept art for 'Star Wars'

George Lucas asked artist Ralph McQuarrie to create reference images to help prospective producers understand his vision for the "Star Wars" universe, and drafted early versions of Darth Vader, Chewbacca, and other characters. You can check out a gallery featuring dozens of the images below.

In 2022, a Minneapolis news station stumbled upon footage of Prince as a child

A production manager at the city's CBS affiliate was looking through the archives for footage of a 1970 teacher strike when he noticed a young boy he believed was Prince. The newsroom worked to extract the audio and identify the childhood friends of the famous musician, who confirmed it was indeed him in the video.

YouTube's first video was grainy video of co-founder Jawed Karim at the zoo

Some 500 hours of content are posted to YouTube every minute. The video at the beginning of that massive growing stream of content is this one—"Me at the Zoo." Uploaded in April 2005 by YouTube co-founder Jawed Karim, it shows him at the San Diego Zoo talking about elephants.

Can butterflies remember being caterpillars?

All holomatabolous insects like butterflies, bees, and moths undergo complete metamorphosis via a pupal stage. Inside the pupa, the insect breaks down into a goop of the basic elements of life like amino acids and proteins, out of which the adult stage of the insect grows. Despite this radical transformation, scientists theorize some of these insects retain what they call memories of their pre-pupa stage. Watch this video to learn more.

The Ramones' 'Pet Sematary,' the theme song for the Stephen King novel of the same name, was written while the band was admiring the writer's collection of horror memorabilia.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

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

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

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.

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

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.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

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

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

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.

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

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.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

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.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Tattoos remain visible on your skin thanks to immune cells called macrophages

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

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.

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.