1

$125 million for a Grade-school math error

Image: Aaron Lefler

Imagine losing a hugely expensive spacecraft due to a simple mix-up between English and metric measurements . That is exactly what happened to NASA in 1999 when a Mars orbiter designed by Lockheed Martin was lost in space.

The confusion caused a malfunction on the $125 million craft, resulting in the probe’s loss. Although it was unusual for Lockheed to use English measurements for a NASA design (since NASA had stipulated using metric measurements for many years), there were still several instances where the error should have been caught but wasn’t.

2

Toys ‘R’ Us blunder

Image: Taylor Heery

If you think an action figure of a drug dealer isn’t the best idea for a toy store , you’re not alone. Yet, for some reason, Toys "R" Us decided otherwise in October 2014, possibly hoping to cash in on the massive success of the Breaking Bad TV series.

Unsurprisingly, the giant toy retailer was forced to pull from its shelves four collectible dolls based on characters from the AMC hit show, each doll featuring a detachable sack of cash and a bag of meth.

3

Apple Maps' rocky beginnings

Image: CardMapr.nl

When Apple decided to launch its own map application on iOS devices after a conflict with Google in 2012, users quickly realized that the Apple app was not nearly as launch-ready as it should have been .

Locations were mislabeled, roads were missing, and it occasionally steered people in entirely the wrong direction. The problem was eventually, though largely, resolved, but it was an embarrassing misstep for a company known for never launching a product before it was as near-perfect as possible.

4

Bank of America debit card fee

Image: Ali Mkumbwa

Back in 2011, when the backlash against the banking industry had not yet reached its boiling point, Bank of America announced it would charge customers $5 per month to use their debit cards .

It was a bad business decision. More than 300,000 people signed an online petition, and Fox Business Network’s Gerri Willis cut up her debit card on air. The bank pointed to federal regulations as the reason for the charge but ultimately capitulated to consumer demand after a month before the fees went into effect.

5

$33 airline tickets from Toronto to Cyprus

Image: Miguel Ángel Sanz

If buying a business class ticket regularly priced at $2,558 for just $33 sounds too good to be true, it probably is. Except in 2006, when an Alitalia employee accidentally forgot to input two extra zeros when pricing business-class tickets from Toronto to Cyprus.

Due to the exchange rate on that day and the blunder, hundreds of buyers managed to snag fares for just $33. The airline honored those deals, accepting the heavily discounted price for the 509 people who purchased tickets before the error was detected.

6

A $70 million comma

Image: Nattipat Vesvarute

As the folks at NASA and Alitalia have shown us, small errors can lead to costly mistakes. The following blunder comes courtesy of Lockheed Martin , which issued a contract to a customer with a missing comma in the sale price .

The astute customer held the aerospace company to the contract, costing Lockheed Martin $70 million for a C-130J Hercules aircraft in June 1999.

7

Sears misses the ship

Image: Estefania Cortes

A retail giant that faced a situation similar to the one Kodak faced—embrace the new and unknown or cling to the old, successful recipe—Sears sold everything from socks to tires via mail order, shipping across the U.S.

Choosing to stick with the old method, the company ended its catalog and delivery business in 1993 . In 1994, Amazon was founded , filling the business void that Sears had just created. The rest is history.

8

Passing on Microsoft

Image: Jaime Marrero

$60 million might seem like a lot of money to us regular folks, but for someone with very deep pockets like Texas businessman and two-time U.S. presidential candidate Ross Perot, it wasn’t all that much.

In 1979, he was offered the chance to buy Microsoft for that sum. However, his final offer to the tech company was just $15 million, and as a result, the Texan missed out on the opportunity to own what would become one of the biggest companies in the world .

9

Blackberry sticks with the old

Image: Thai Nguyen

Another case of a brand sticking with the old instead of embracing the new, BlackBerry was all the rage at the start of the 21st century— until Steve Jobs came along with the Apple iPhone .

While BlackBerry Messenger was extremely popular, with over 80 million users worldwide, the device lacked the new touchscreen functionality and sleek design of the Apple product. From being a market leader, BlackBerry’s market share plummeted to 0.2% by 2016.

10

RadioShack’s downfall

Image: Jelleke Vanooteghem

Not so long ago, RadioShack was a familiar presence on the streets and the go-to place for buying batteries and electronics. But it was that same brick-and-mortar presence, coupled with a reluctance to embrace e-commerce , that ultimately led to its demise .

Eventually, poor profit margins on what they could sell, combined with a loan they couldn’t repay, brought down what was once the go-to place for electronics.

1

Bigfoot

Image: Mandy Bourke

We’ll start with a classic. For many Americans, Bigfoot is the quintessential mystery —a fantastical creature that has fascinated generations. Also known as Sasquatch, Bigfoot is described as a large, hairy, ape-like being that supposedly roams the forests of North America, evading hikers and adventurers. Some believe most sightings result from misidentifying large mammals like black bears, but true believers continue their relentless search for this mythical creature.

2

Area 51

Image: Oliver Pacas

Who would have thought that a number could become synonymous with aliens and mystery? There’s no doubt that Area 51 exists—it is a real and highly classified United States Air Force facility in Nevada. However, most of us know it for the intrigue surrounding it. According to some sources, Area 51 houses crashed spaceships and alien life forms . Of course, the government denies these claims, but to quote the classic TV show The X-Files , some theorists "choose to believe."

3

Amelia Earhart

Image: Tomas Martinez

Amelia Earhart's life was one filled with adventure. She became the first female pilot to fly solo nonstop across the Atlantic Ocean, among many other feats. Beyond her achievements, her magnetic personality and best-selling books made her an international icon, forever cemented as an American cultural icon. Her mysterious disappearance only deepens the intrigue surrounding her: While attempting to become the first female pilot to circumnavigate the globe, Earhart’s plane vanished over the Pacific Ocean —no wreckage or remains were ever found.

4

Mothman

Image: Sonika Agarwal

Moths are sadly often given a bad reputation. Though they are close cousins to the beloved, colorful butterflies, some people find them slightly unnerving. For the people of West Virginia , there’s an even greater reason to find moths scary: The "Mountain State" is home to one of America’s most famous cryptids— the Mothman . According to legend, this eerie creature resembles a man , stands about seven feet tall , and has large white wings and glowing red eyes .

5

Jersey Devil

Image: Tech Nick

If you ever visit South Jersey’s Pine Barrens, be on the lookout for an oddly shaped creature often described as a cross between a kangaroo and a winged beast . If luck (or misfortune) is on your side, you might encounter the fabled Jersey Devil . Many legends surround this creature, but the most popular tells of the cursed thirteenth child of a Pine Barrens resident, forever cursed to haunt this region.

6

UFO Sightings

Image: Michael Herren

UFO sightings are the bread and butter of paranormal enthusiasts. Thousands of Americans have reported seeing flashing lights in the sky , unable to explain their origin. In that regard, we’ll focus on what is perhaps the most famous UFO sighting in this article: In 1947 , residents of the town of Roswell, New Mexico , claimed to have seen a UFO crash into the desert.

7

Haunted houses

Image: Ján Jakub Naništa

As soon as October comes around, hundreds of excited families transform their garages into spooky, fun haunted houses. It’s a thrilling activity that brings neighborhoods together, but let’s face it—these aren’t the haunted houses we’re talking about. From the LaLaurie Mansion in New Orleans to the Winchester Mystery House in San Jose , America is home to some of the world’s most terrifying haunted houses—locations definitely not suitable for the faint of heart.

8

Chupacabra

Image: Nandhu Kumar

For such a terrifying creature, the English translation of " Chupacabra "—literally " goat-sucker "—somewhat diminishes its mystique. However, don’t let the name fool you. According to legend, this cryptid is a foul beast that preys on livestock , draining their blood. Descriptions of its appearance vary: In Puerto Rico , it is depicted as an alien-like creature , while in the Southwestern United States , it is described as more dog- or wolf-like .

9

Marfa lights

Image: Jr Korpa

Many cultures around the world have legends about mysterious lights appearing before wary travelers at night. In our case, the city of Marfa, Texas , is home to a strange phenomenon known as the Marfa Ghost Lights . While scientists suggest a rational explanation—claiming they result from automobile headlights distorted by warm desert air—some still believe the lights have a paranormal origin.

10

Chimayó, New Mexico – Land of Healing

Image: Lina Trochez

We’ve covered some dark and gruesome mysteries in this article, so why not end on a lighter note? In New Mexico’s Rio Arriba and Santa Fe counties, Chimayó is home to a remarkable site . Some believers claim that El Santuario de Chimayó , a Roman Catholic church, possesses mysterious healing powers —particularly the "holy dirt" found in a small well at the back of the church.

1

The Real Huckleberry Finn

Image: Demure Storyteller

As mentioned earlier, Huckleberry Finn was, at least in part, based on a real person. Much of Mark Twain’s inspiration comes from his own life and experiences. Though Huckleberry Finn is a fictional character, his appearance, demeanor, and lifestyle closely mirror almost exactly Mr. Twain’s dear childhood friend, Tom Blankenship.

Huckleberry Finn first appeared in The Adventures of Tom Sawyer before becoming the central figure in his own story, The Adventures of Huckleberry Finn , a work widely regarded as a cornerstone of American literature.

2

Education

Image: Johnny Cohen

Mark Twain’s intellectual achievements might suggest he was a highly academically educated individual, but that was not the case. He had to leave school at a very early age to help support his family after his father’s death.

After he dropped out of school, Twain began working at the Hannibal Journal , where his writing career would find its start. Always the avid reader, he was known to spend hours each evening in the library, immersing himself in books.

3

Steamboat pilot

Image: Andreas Haubold

In 1857, Mark Twain began his career as an apprentice steamboat pilot on the Mississippi River . Soon after, he recruited his younger brother to work on the vessel as well, but tragedy struck one day as he died from an explosion on the steamboat. Despite this heartbreaking event, Twain continued his training and earned his pilot’s license in 1859, working as a pilot until the outbreak of the Civil War.

In June 1902, he paid his final visit to the Mississippi River when he accepted an honorary degree at the University of Missouri in Columbia and participated in the dedication of a steamboat named in his honor.

4

Pen Names

Image: Patrick Fore

It is a well-known fact that Mark Twain, though a great name indeed, was not our hero’s real birthname which was Samuel Langhorne Clemens . Choosing a memorable pen name can be a lengthy process, and many authors experiment with a few before settling on one.

Before adopting the now-famous "Mark Twain," Clemens tested out some unusual pseudonyms, including "Epaminondas Adrastus Blab" and "Thomas Jefferson Snodgrass."

5

Miner years

Image: Art Institute of Chicago

A man unafraid of trying new things, Mark Twain also worked as a miner in Nevada , where he and his brother fled, avoiding the Civil War. He later described the work as "hard and long and dismal."

His stint as a miner was short-lived, as he quickly landed his first writing job at The Territorial Enterprise newspaper in Virginia City. There he was tasked with covering crime, politics, culture, and, also, mining.

6

19 cats

Image: Paul Hanaoka

A hardcore cat enthusiast, Mr. Twain was so fond of these felines that he even "rented" them to keep him company while traveling . At one point in his life, he reportedly had 19 cats at the same time.

When asked about this obsession, Twain replied that he found cats much preferable to humans, even going as far as saying, "If man could be crossed with the cat, it would improve man, but it would deteriorate the cat."

7

Board game inventor

Image: Jaciel Melnik

Perhaps learning about English monarchs was a fun activity in the times of Mark Twain but, in any case, it served as the inspiration for a board game he invented and patented , called Memory Builder.

Memory Builder wasn’t Twain’s only invention. He also designed a self-adhesive scrapbook that works like an envelope and created an improvement in adjustable and detachable straps for women’s bras.

8

Bed writer

Image: Annie Spratt

Some might think that working in bed all day would be extremely uncomfortable, especially due to posture. However, Mark Twain found it absolutely delightful, and it became his favorite place to work.

In his old age, Mark Twain was often photographed in his bed, smoking away a cigar or pipe while writing. Though he owned many houses throughout his life, he had only one favorite bed, which he kept with him until the end.

9

Bad businessman

Image: Vasilis Caravitis

Being a great author doesn’t guarantee being successful in other things as well. Despite dabbling in many business investments, Twain’s financial endeavors were largely unsuccessful. He lost money in mining and technology ventures and even went bankrupt.

However, he always managed to make a comeback with his writing and his lectures, proving that his known talents were generous and reliable.

10

Predicted his own death

Image: Frank Zinsli

In 1909, Mark Twain predicted that he would die when Halley’s Comet returned . This was because the last time the comet passed near Earth was the year of his birth. Unfortunately, he was right, and he passed away in 1910.

Twain's family was by his side when he died, and he was buried in Elmira, New York. The exact cause of his death remains a mystery to this day.