13 Facts About Friday the 13th

Stockbyte/iStock via Getty Images
Stockbyte/iStock via Getty Images

There are plenty of superstitions out there, but none have woven themselves into the fabric of our culture quite like Friday the 13th. It's inspired books, songs, and one of the most successful horror movie franchises of all time. But despite giving us anxiety, the origins of this notorious date on the calendar remain largely unknown to most. Where did it start? Does it really stretch back to the 14th century? And how does Loki figure into all of it?

There are a lot of urban legends and half-truths out there, so we're diving a bit deeper into the history of this most terrifying of days with 13 facts about Friday the 13th.

1. The Bible helped inspire the phobia.

The Last Supper
iStock

Part of superstition surrounding Friday the 13th comes from the Christian Bible. During the Last Supper, there were 13 guests—Jesus and his 12 apostles, one of which, Judas, would eventually betray him. Since then, some have believed in a superstition regarding 13 guests at a dinner table. This slowly extended to be an overall feeling that the number itself was bad luck.

Of course, when Jesus was crucified, it took place on a Friday, leading some to view the day with an anxious eye. Taken separately, both the number 13 and Friday have since made their way into modern superstitions.

2. So did Loki.

Guided by Loki, Höðr shoots the mistletoe at Baldr.
Guided by Loki, Höðr shoots the mistletoe at Baldr.
Wilhelm Wägner, Wikimedia Commons // Public Domain

The Last Supper is one view on the origins of our fear of 13. Another comes from Norse mythology—more specifically in the form of the trickster god Loki. In those stories, Loki tricked the blind god Höðr into killing his brother Baldr with a dart of mistletoe. Baldr's mother, Frigg, had previously ordered everything in existence to never harm her son, except the mistletoe, which she viewed as incapable of harm.

How does 13 figure into this? Some accounts say Baldr's death took place at a dinner held for 12 gods before it was interrupted by Loki—the 13th (and most unwanted) guest.

3. Some point to the Knights Templar as the source of why people fear the day (but it's probably not true).

Jacques de Molay, the 23rd and Last Grand Master of the Knights Templar, is lead to the stake to burn for heresy in 1314.
Jacques de Molay, the 23rd and Last Grand Master of the Knights Templar, is lead to the stake to burn for heresy in 1314.
Hulton Archive, Getty Images

Contrary to what The Da Vinci Code told you, the reason people fear Friday the 13th isn't because of the Knights Templar. On the very unlucky Friday, October 13, 1307, Philip IV of France had members of the Templar arrested—growing uneasy with their power and covetous of their riches. There were trials, torture, and many of the Knights were burned at the stake, eventually leading to the superstition of Friday the 13th as a cursed and evil day.

That's not quite true, though. This is a take that's been drummed up in recent years, most visibly in Dan Brown's best-selling novel, but in reality, the unlucky combination of Friday and 13 didn't appear until around the turn of the 20th century.

4. A 1907 novel played a big part in creating the superstition.

Panic on 'Black Friday' in the New York Gold Room, 1869.
Three Lions, Getty Images

We know a good deal about the history of our fear of 13 and of Fridays, but combined? Well, that's less clear. One popular thought, though, points to a 1907 book by a stockbroker named Thomas Lawson. Titled Friday, the Thirteenth, it tells the tale of a stockbroker who picks that particular day to manipulate the stock market and bring all of Wall Street down.

The book sold fairly well at the time, moving 28,000 copies in its first week. And it must have struck a chord with early 20th century society, as it's said to have caused a real-life superstition among stockbrokers regarding trading and buying stocks on the 13th. While not the first to combine the dates, Lawson's book is credited with popularizing the notion that Friday the 13th is bad news.

The fear among brokers was so real that in a 1923 New York Times article, it stated that people "would no more buy or sell a share of stock today than they would walk under a ladder or kick a black cat out of their path."

5. Stockbrokers have reason to be nervous on Friday the 13th.

The 1873 rush from the New York Stock Exchange as banks began to fail and close, leading to a 10-day closure of the Stock Exchange.
Three Lions, Getty Images

Lawson's book was pure fiction, but the history of the stock market on Friday the 13th can be either profitable or absolutely terrifying, depending on the month. On most Friday the 13ths, stocks have actually risen—according to Time, they go up about 57 percent of the time, compared to the 52 percent on any other given date. However, if it's a Friday the 13th in October … be warned.

There's an average S&P drop of about 0.5 percent on those unlucky Fridays in October. And on Friday, October 13, 1989, the S&P actually saw a drop of 6.1 percent—to this day, it's still referred to as a "mini crash."

6. Good things happen on Friday the 13th, too!

Hollywood sign on the hill
iStock

On Friday, July 13, 1923, the United States got a brand new landmark as the famed Hollywood sign was officially christened as a promotional tool for a new housing development. But before the sign took on its familiar image, it initially read "Hollywoodland"—the full name of the development that was being built on the hills above Los Angeles. The sign took on its current “Hollywood” look in 1949 when, after two decades of disrepair, the Hollywood Chamber of Commerce decided to remove the last four letters and just maintain the first nine.

7. Appropriately, heavy metal music was born on Friday the 13th.

Cover of Black Sabbath album
vinylmeister, Flickr // CC BY-NC 2.0

This one isn't exactly scientific, but don't tell that to a metalhead. According to heavy metal lore, the genre was born Friday, February 13, 1970, with the UK release of Black Sabbath's self-titled debut album. Bands like Steppenwolf had laid the foundation in the years before (Steppenwolf is also credited with coining the term "heavy metal" in their lyrics for 1968's "Born to Be Wild"), but those first dissonant "Devil's Tritone" chords of "Black Sabbath"—yes, the opening track of the album Black Sabbath by the band Black Sabbath was the song "Black Sabbath"—were the true birth of the dark, brooding, rocking subculture. Horns up.

8. There are scientific terms for the phobia.

Friday the 13th on a calendar
iStock

Afraid of Friday the 13th? Well now you can put a name to your phobia. You likely already know the term triskaidekaphobia, which only applies to the fear of the number 13. But for specific fears of Friday the 13th, you can choose between paraskevidekatriaphobia (Paraskevi meaning Friday in Greek) or friggatriskaidekaphobia, based on the word Frigg, the Norse goddess that Friday was named after in English. (Remember, it was her son who Loki had killed …)

9. One Indiana town puts bells on every black cat to ward off bad luck.

Black cat wearing a bell.
Danilo Urbina, Flickr // CC BY NC-ND 2.0

The folks of French Lick, Indiana (Larry Bird's hometown) are apparently a superstitious lot. In the 1930s and extending into the '40s, the town board decreed all black cats in the town were to wear a bell around their neck every Friday the 13th. Apparently, the confluence of two popular phobias was a bit too much for the small Indiana town to handle.

10. Five presidents were part of a club to improve the number's reputation.

old-fashioned formal dinner
iStock

Some people aren't just unaffected by the stigma of 13, they're downright defiant of it. In order to prove that there was no curse on the number, Captain William Fowler—who had fought in 13 Civil War battles—started a club in 1882 that spat in the face of superstition.

Members would meet on the 13th of the month, at 13 past the hour, and sit 13 at a dining table. For some, this behavior was just begging for a hex, but these men didn't care. They sought to disprove the myth and others along with it—open umbrellas lined the dining hall and members would willingly break glass, waiting for a so-called curse to befall them.

This wasn't just a club for eccentrics, either. Five presidents would become honorary members of The Thirteen Club: Chester Arthur, Grover Cleveland, Benjamin Harrison, William McKinley, and Theodore Roosevelt. In fact, Cleveland would take part while he was in office. In all, it's said that no man was struck down by any particularly curious fate (except perhaps McKinley, who was assassinated), despite having so blatantly tempted it.

11. In Italy, people fear Friday the 17th.

number 17 on a wooden background
iStock

Italy's got the right idea, but they're a few days off. Traditionally, their fear coincides with the number 17, which can be arranged as the sum of the Roman numerals VIXI, which can then, in turn, be translated as the Latin phrase "I have lived." The overall superstition around Friday remains the same—it all has to do with Jesus's crucifixion.

This is no niche phobia, though. As ThoughtCo. points out, there are people who refuse to leave the house or go to work on Friday the 17th out of fear of the ominous date. And the Italian airline Alitalia doesn't even put a row 17 (or a 13) on its planes, as seen on this seat map [PDF].

12. There can't be more than three Friday the 13ths in a given year.

Calendar of 2015 with three Friday the 13ths
Calendar: iStock. Coloring: Mental Floss.

There's some good news if you're one of those people who are genuinely afraid of Friday the 13th: There can't be more than three in any given year, and it's possible to go as many as 14 months without one. There's an easy way to figure out if a month will have a Friday the 13th, too—if the month starts on a Sunday, you're guaranteed one. For 2018, 2019, and 2020, we get a bit of a break, as each year will only have two. This year, only April and July are affected.

13. An asteroid will come relatively close to us on a Friday the 13th in 2029.

asteroid projection image
iStock

Let's just get this out of the way: We'll be fine. An asteroid will not collide with the Earth on Friday, April 13, 2029. We will, however, get a pretty spectacular look at asteroid 99942 Apophis (also known as 2004 MN4), which is about 320 meters wide and would be devastating if it did hit. When the asteroid was first discovered in 2004, astronomers gave it a haunting 1-in-60 chance of colliding with Earth, but extra data has proved that it'll miss us entirely.

"We weren't too worried," Paul Chodas, of NASA's Near Earth Object Program, said, "but the odds were disturbing."

That's not to say the asteroid still won't be a sight to behold: Apophis will cruise past Earth 18,600 miles above ground. "For comparison," NASA wrote on its site, "geosynchronous satellites orbit at 22,300 miles." The asteroid will be mostly visible in parts of Asia, Africa, and Europe, and another event of this nature may not be seen for another 1000 or so years.

The 10 Best Memorial Day 2020 Sales

iRobot,GoWise,Funko via Wayfair, Entertainment Earth
iRobot,GoWise,Funko via Wayfair, Entertainment Earth

The Memorial Day sales have started early this year, and it's easy to find yourself drowning in offers for cheap mattresses, appliances, shoes, and grills. To help you cut through the noise and focus on the best deals around, we threw together some of our favorite Memorial Day sales going on right now. Take a look below.

1. Leesa

A Leesa Hybrid mattress.
A Leesa Hybrid mattress.
Leesa

Through May 31, you can save up to $400 on every mattress model Leesa has to offer, from the value-minded Studio by Leesa design to the premium Leesa Legend, which touts a combination of memory foam and micro-coil springs to keep you comfortable in any position you sleep in.

Find it: Leesa

2. Sur La Table

This one is labeled as simply a “summer sale,” but the deals are good only through Memorial Day, so you should get to it quickly. This sale takes up to 20 percent off outdoor grilling and dining essentials, like cast-iron shrimp pans ($32), a stainless steel burger-grilling basket ($16), and, of course, your choice of barbeque sauce to go along with it.

Find it: Sur la Table

3. Wayfair

KitchenAid Stand Mixer on Sale on Wayfair.
Wayfair/KitchenAid

Wayfair is cutting prices on all manner of appliances until May 28. Though you can pretty much find any home appliance imaginable at a low price, the sale is highlighted by $130 off a KitchenAid stand mixer and 62 percent off this eight-in-one GoWise air fryer.

And that’s only part of the brand’s multiple Memorial Day sales, which you can browse here. They’re also taking up to 40 percent off Samsung refrigerators and washing machines, up to 65 percent off living room furniture, and up to 60 percent off mattresses.

Find it: Wayfair

4. Blue Apron

If you sign up for a Blue Apron subscription before May 26, you’ll save $20 on each of your first three box deliveries, totaling $60 in savings. 

Find it: Blue Apron

5. The PBS Store

Score 20 percent off sitewide at Shop.PBS.org when you use the promo code TAKE20. This slashes prices on everything from documentaries like Ken Burns’s The Roosevelt: An Intimate History ($48) and The Civil War ($64) to a Pride & Prejudice tote bag ($27) and this precious heat-changing King Henry VIII mug ($11) that reveals the fates of his many wives when you pour your morning coffee.

Find it: The PBS Store

6. Amazon

eufy robot vacuum.
Amazon/eufy

While Amazon doesn’t have an official Memorial Day sale, the ecommerce giant still has plenty of ever-changing deals to pick from. Right now, you can take $100 off this outdoor grill from Weber, $70 off a eufy robot vacuum, and 22 percent off the ASUS gaming laptop. For more deals, just go to Amazon and have a look around.

7. Backcountry

You can save up to 50 percent on tents, hiking packs, outdoor wear, and more from brands like Patagonia, Marmot, and others during Backcountry's Memorial Day sale.

Find it: Backcountry

8. Entertainment Earth

Funko Pops on Sale on Entertainment Earth.
Entertainment Earth/Funko

From now until June 2, Entertainment Earth is having a buy one, get one half off sale on select Funko Pops. This includes stalwarts like the Star Wars and Batman lines, and more recent additions like the Schitt's Creek Funkos and the pre-orders for the upcoming X-Men movie line.

Find it: Entertainment Earth

9. Moosejaw

With the promo code SUNSCREEN, you can take 20 percent off one full-price item at Moosejaw, along with finding up to 30 percent off select items during the outdoor brand's summer sale. These deals include casual clothing, outdoor wear, trail sneakers, and more. 

Find it: Moosejaw

10. Osprey

Through May 25, you can save 25 percent on select summer items, and 40 percent off products from last season. This can include anything from hiking packs and luggage to outdoorsy socks and hats. So if you're planning on getting acquainted with the great outdoors this summer, now you can do it on the cheap.

Find it: Osprey

At Mental Floss, we only write about the products we love and want to share with our readers, so all products are chosen independently by our editors. Mental Floss has affiliate relationships with certain retailers and may receive a percentage of any sale made from the links on this page. Prices and availability are accurate as of the time of publication.

12 Fascinating Facts About Queen Victoria

Photos.com/iStock via Getty Images
Photos.com/iStock via Getty Images

Much like Queen Elizabeth II, Queen Victoria was never expected to ascend to the British throne. Born on May 24, 1819, the young royal known as Princess Alexandrina Victoria of Kent defied all odds when she became Queen Victoria on June 20, 1837, less than a month after her 18th birthday.

Victoria ruled the United Kingdom of Great Britain and Ireland for more than 60 years, and in 1876 she adopted the title of Empress of India. Victoria didn’t oversee her empire alone, though. In 1840 she married Prince Albert of Saxe-Coburg and Gotha, and together they had nine children (including Victoria’s successor, King Edward VII). Here are 12 things you might not have known about Queen Victoria.

1. Queen Victoria was born fifth in line to the throne, which made her an unlikely ruler.

Princess Victoria and her mother in 1834
Princess Victoria and her mother in 1834.
George Hayter, The Print Collector/Print Collector/Getty Images

When Victoria was born, she was fifth in line to the throne, just behind her father, Prince Edward, Duke of Kent, who was fourth in line behind his three older brothers (none of whom had any living children—or at least no legitimate issue). Victoria's position in the line of succession placed her ahead of Ernest Augustus, Duke of Cumberland, her father's younger brother, which proved to be problematic.

When Victoria's father died on January 23, 1820, the future queen was barely eight months old. And when her grandfather, George III, died just a week later, the tot became third in line to the throne, which reportedly enraged Ernest Augustus. Fearing for the safety of her daughter, Victoria's mother chose to raise her away from the influence of Prince Edward's family—especially once rumors began to circulate that Ernest Augustus had designs on murdering his young niece to ensure that he, not she, would ascend to the throne. Whether or not there was any veracity to those rumors didn’t matter; on June 20, 1837, following the death of her uncle William, Duke of Clarence, 18-year-old Princess Alexandrina Victoria became Queen Victoria.

2. Queen Victoria was the first sovereign to rule from Buckingham Palace.

In 1761, Buckingham Palace was not yet a palace—it was simply a house. King George III bought the property for his wife, Queen Charlotte, to use as a family home. But when King George IV took over, he had bigger aspirations and decided to create an extravagant palace; costs ballooned to £500,000 (or more than $65 million in today's dollars). George IV died in 1830, however, which meant he never even got to live in the palace. When Queen Victoria took over in 1837, she became the first sovereign to rule from Buckingham Palace. In 1851, she was the first recorded royal to appear on Buckingham Palace’s balcony, a tradition the royal family still continues today.

3. Queen Victoria survived eight assassination attempts.

Queen Victoria sitting in a carriage car
Culture Club/Getty Images

Being in the public eye has its advantages and disadvantages, and for Queen Victoria that meant being the frequent target of assassination attempts. Over the course of her reign, she survived eight of them. In 1840, Edward Oxford shot at Victoria and Prince Albert while they rode in a carriage; Victoria, who was pregnant at the time, was thankfully not harmed. (Oxford was later judged to be insane.)

Two years later, John Francis attempted to shoot the couple not once, but twice—two days in a row. Again, neither was harmed. Just five weeks later, a teenager named John William Bean fired a pistol loaded with pieces of tobacco pipe at the Queen. In 1850, she was eventually injured when ex-soldier Robert Pate hit her over the head with an iron-tipped cane while she spent time in the courtyard of her home. Pate gave her a black eye and a scar that lasted for a long time.

4. Queen Victoria first met Prince Albert on her 17th birthday.

In May 1836, on Victoria’s 17th birthday, Prince Albert and the future queen—who were first cousins—met for the first time when Albert and his brother visited Kensington Palace with their Uncle Leopold. (Albert would turn 17 years old in August.) “He is extremely handsome,” Victoria wrote of the prince in her diary. But it would take almost four more years for the couple to tie the knot. And because royal rule stipulated that a reigning monarch could not be proposed to, Victoria had to be the one to pop the question. On October 15, 1839, Victoria proposed to Albert, who happily accepted. The couple married on February 10, 1840.

5. Queen Victoria popularized the white wedding dress.

Queen Victoria of England - Her Majesty 's wedding to Prince Albert in 1840
Culture Club/Getty Images

If you've ever wondered where the white wedding dress tradition originated, look no further than Queen Victoria. In 1840, Victoria wore an off-the-shoulder white satin gown covered in lace when she married Prince Albert. Though Victoria wasn’t the first royal to wear a white wedding dress—Mary, Queen of Scots wore white, too—wearing white became a status symbol following Victoria and Albert's nuptials.

6. Queen Victoria ensured that no other bride could replicate her wedding dress.

After Victoria’s wedding, she had the pattern to her dress destroyed so that no one could duplicate it.

7. Queen Victoria had nine children, but had some harsh opinions of motherhood.

Queen Victoria And Prince Albert With Five Of Their Children in 1846
Historica Graphica Collection/Heritage Images/Getty Images

Nine kids is a lot, and even though the Queen had a lot of help, she at times seemed indifferent to motherhood. In personal letters, she wrote about her children, mainly about their looks. She once wrote: “I am no admirer of babies generally—there are exceptions—for instance (your sisters) Alice, and Beatrice were very pretty from the very first—yourself also-rather so—Arthur too ... Bertie and Leopold—too frightful. Little girls are always prettier and nicer.” She also said “an ugly baby is a very nasty object.”

8. Queen Victoria was fascinated by Jack the Ripper.

In 1888, the serial killer known as Jack the Ripper began brutally murdering women—mainly prostitutes—in London’s Whitechapel district. Victoria received a petition signed by the women of East London urging the Queen’s “servants in authority” to “close bad houses” a.k.a. brothels, and passed it to the Home Office. When final victim Mary Jane Kelly was killed, Victoria contacted the Prime Minister and urged that better detectives be employed.

9. Queen Victoria’s grandson was suspected of being Jack the Ripper.

Prince Albert Victor, Duke of Clarence and Avondale, c1890s
The Print Collector/Print Collector/Getty Images

To this day, no one knows for sure who Jack the Ripper was. However, some people have theorized that Victoria’s grandson Prince Albert Victor was the killer. In the 1976 book Jack the Ripper: The Final Solution, author Stephen Knight wrote about how Victoria’s grandson might’ve contracted syphilis from a prostitute, which turned him mad. Another theory suggests the grandson secretly married a Catholic commoner and fathered a child, and it was the royal family who murdered the women to cover up the family secret. (Yes, that one seems a little far-fetched.)

10. Queen Victoria served as her grandson’s alibi.

Queen Victoria gave her grandson an alibi in her journal, thus exonerating him from accusations of being one of the world’s most famous serial killers.

11. Queen Victoria is the second longest-reigning British Monarch.

For 51 years, Victoria held the title of longest-reigning British monarch. But on September 9, 2015, Queen Elizabeth II took over the reins, so to speak, and bumped Victoria to second place. Victoria ruled for 63 years, 7 months, and 3 days; Elizabeth—who is Victoria’s great, great granddaughter—has ruled for almost 68 years.

12. Queen Victoria spent 40 years mourning the death of Prince Albert.

Queen Victoria with her great-granchildren at Osborne House, Isle of Wight, 1900
The Print Collector/Print Collector/Getty Images

A couple of years before his death, Prince Albert began experiencing stomach cramps, and he almost died in a horse-drawn carriage accident. He told Victoria his days were numbered: “I am sure if I had a severe illness, I should give up at once. I should not struggle for life. I have no tenacity for life,” he said.

On December 14, 1861, Albert succumbed to typhoid fever, though some people believe that stomach cancer and Crohn’s disease were the more likely culprits. Victoria blamed their son Edward for Albert’s death, as Albert was worried about a scandalous affair Edward was said to be having with an actress in Ireland.

Victoria lived for another 40 years and mourned Albert’s death the rest of her life by wearing black, becoming a recluse (she was often referred to as the Widow of Windsor), and keeping Albert’s rooms just the way he had left them.