Here Are 13 Super Common Items That Were Invented For Deeply Disturbing Reasons

Like many things throughout history, everyday items (that, let's face it, are probably in your home right now) often have dark and disturbing backstories. Oftentimes, these objects were invented to solve problems — perhaps healing injuries on the battlefield or aiding communities after natural disasters — but on the flip side, many inventions were used for nefarious purposes, such as prison torture or even deadly medical procedures...

Person writing on a Leonardo da Vinci-style manuscript with sketches and notes, featuring designs and mechanical diagrams on aged paper
Gorodenkoff / Getty Images

Simply put, everything is not what it seems when it comes to the inspiration behind some of history's most recognizable inventions. So, without further ado, here are 13 common items that were invented for surprisingly unsettling reasons:

1.High heels:

Woman holding high heels in foreground, man blurred in background

At the time, a wave of interest in Persian culture washed over most of Europe. So when Abbas's diplomats arrived, their interesting footwear became the hottest new look, as heels were increasingly seen as the most masculine shoes for aristocratic men.

Although Catherine de Medici was reported to wear high heels at her wedding in 1533, it wasn't until the 1630s that heels became associated with women's footwear. Stemmelhack explained, "In the 1630s, you had women cutting their hair, adding epaulets to their outfits. They would smoke pipes; they would wear hats that were very masculine. And this is why women adopted the heel — it was in an effort to masculinize their outfits."

2.Treadmills:

A hand-drawn image of several male prisoners walking on crude treadmill wheels

3.WD-40:

Can of WD-40 with a Smart Straw, used for lubrication and protection against rust, shown against a plain background

4.Kleenex:

Kleenex tissue box corner with a blue circle logo stating "Kleenex Marque Mouchoirs Ultra Soft."

5.Bicycles:

Historic black-and-white photo showing people standing on a railcar adorned with bicycles, highlighting early transportation methods

This is where German aristocrat and inventor Baron Karl von Drais enters the story. Drais lived in the southwest region of Germany, which was deeply impacted by the Mt. Tambora eruption.

Seeing that his fellow Germans were suffering, Drais invented a rider-propelled machine so people wouldn't have to rely on horses and livestock to travel or farm. This machine moved by having a rider scoot themselves around using only the force of their legs (similar to a Flintstone car). The device was patented as a “running machine" and soon became popular in Europe.

Four decades later, gears and pedals were added to the "running machine," transforming it into the modern bicycle shape.

6.Roller coasters:

A group of friends enjoying a roller coaster ride, laughing and raising their hands

7.Metal detectors:

19th-century illustration of two scientists applying electrotherapy to a patient lying in bed. A rudimentary electrical machine is depicted in the corner

At the time of the assassination, Bell was working at a lab in Washington D.C. and heard through the newspaper that Garfield's physician, Dr. Willard Bliss, was attempting to extract the soon-fatal bullet from the President's body by probing inside of the wound. Garfield was appalled by this primeval method and set out to finish his metal detecting device, which he had first gotten the inspiration for during his time experimenting with the telephone.

Furiously working alongside his assistant, William Teeter, Bell completed his rudimentary metal detector in a few days. He experimented with his new device on wooden boards that had bullets in them, animal carcasses, and even Civil War veterans who had retained shrapnel from decades before.

On July 26, Bell made his first attempt at saving the President's life by scanning the metal detector over his body. However, a new condenser that he had added to the machine caused an inconclusive scan, which led the inventor back to the drawing board.

Bell returned to the White House six days later with his new and improved metal detector. However, this time, Dr. Bliss interfered with the scan of the President's body, insisting that the bullet was located on the right side of his torso. Bell proceeded with his scan before discovering that Garfield was lying on a bed with metal springs, therefore rendering his metal detector unable to get a clear reading.

(It didn't help matters that Dr. Bliss was, indeed, incorrect as it was discovered during the President's autopsy that the bullet was lodged in the left side of his chest). After a long and painful struggle, Garfield finally succumbed to his gunshot wound on September 19, 1881.

8.Pillows:

A person lies in bed, looking tired and resting their head on their hand, partially covered by a blanket

9.Coca-Cola:

Two Coca-Cola cans held up close, one Original Taste and one Zero Sugar. A person in the background is blurred out

10.Super glue:

An open tube of glue with glue dripping from it

11.Chainsaws:

Person using a chainsaw to cut a log while another person chops wood with an axe in the background. Outdoor setting

12.Graham crackers:

A plate with stacked graham crackers next to a glass of milk on a white surface

As author, Adam D. Shpintzen wrote, “He was on a strong anti-masturbation crusade. He said, ‘If you’re eating meat, you’re acting like an animal, and you should avoid those types of primal instincts — like the urge to have sex.'"

In an effort to curb America's "sinful" urges, Graham set out to invent the blandest food ever — the graham cracker. Now, if you're thinking, "Wait, what? Graham crackers are delicious!"...you would be correct about modern-day graham crackers — but Graham's self-titled crackers were baked with finely ground, unbleached wheat flour, wheat bran, coarsely ground germ, and absolutely no sugar.

Shpintzen noted, “It [the first graham cracker] was stale-tasting and harsh to chew. It would be hard on our modern palate. It was partly a response to the rise of industrial baking, which he thought was a less healthy form of bread."

13.Cornflakes:

Bowl of cornflakes with a spoon on a blue surface, shadows in the background

However, the invention of this morning meal was actually one of his less gruesome beliefs concerning the prevention of masturbation. One theory he had previously proposed was that women should endure the “application of pure carbolic acid to the clitoris” to prevent “abnormal excitement.”

So, Kellogg set off on a quest to invent the perfect anti-sex food, which just so happened to be cornflakes. He commercially marketed the cereal as the “healthy, ready-to-eat anti-masturbatory morning meal.”

By 1906, John sold the cereal rights to his brother W.K. Kellogg, who copyrighted the name and began mass-producing the breakfast staple — although the company no longer claimed that the flakes curtailed sexual urges.

Which one of these facts surprised you the most? Do you know of any other everyday items invented for dark or disturbing purposes? Let us know in the comments!