12 Things You Should Know About the United States Postal Service

Justin Sullivan/Getty Images
Justin Sullivan/Getty Images

Snail mail doesn’t sound thrilling, but the United States Postal Service is anything but boring. USPS workers serve some of the most far-flung places in the country and process more than 400 million pieces of mail each day—including hundreds of thousands of letters to Santa each year. Here are a few facts about the letter carriers in your life.

1. The United States Postal Service was created via a constitutional amendment.

Benjamin Franklin was appointed the first Postmaster General in 1775. When the U.S. Constitution was ratified in 1789, Article I, Section 8, Clause 7 gave Congress the ability to “establish post offices and post roads.” In 1792, President George Washington signed the Postal Service Act, creating the Post Office Department. Nearly two centuries later, the United States Postal Service as we know it was created. Today, the USPS employs more than 7.3 million people.

2. Some United States Postal Service mail is delivered by mule.

Trusty mail carriers hoofing it down the Grand Canyon.Elf, Wikimedia Commons // CC BY-SA 3.0

How do you get mail to the bottom of the Grand Canyon? By enlisting the help of mules. Every day, mule trains deliver about 4000 pounds of mail, food, supplies, and furniture to the village of Supai. The local Havasupai tribe receives its mail after an 8-mile journey by 50 horses and mules. Since so much of the mail is perishable, the post office where this route originates in Peach Springs, Arizona, has walk-in freezers.

3. The USPS also uses postal boats.

Meanwhile, in Michigan, a 45-foot mail boat, the J.W. Westcott II, has a contract to deliver mail to passing ships sailing on the Detroit River. Legally, the postal service has to deliver mail to all Americans, even those aboard ships. The mail boat pulls alongside larger vessels, which lower down a bucket on a rope that can be filled with correspondence—the custom is known as “mail in the pail.” The boat even has its own special ZIP code: 48222.

The Detroit River isn’t the only place where you can receive your mail by boat. In Alabama’s Magnolia River, 176 homes on the 31-mile route receive their deliveries from a 15-foot boat that pulls right up to fixed mailboxes on their docks.

4. The longest United States Postal Service mail route is more than 190 miles.

Sidney, Montana, boasts an unusual claim to fame: The remote town has the longest rural delivery mail route. The mail carrier travels a whopping 190.7 miles.

5. The shortest USPS rural mail route is under 3 miles.

Not every carrier is piling up the daily mileage. The mail carrier in Parker, Colorado, has it relatively easy, only traveling 2.3 miles each day. The USPS says its shortest rural delivery route is Carrollton, Texas, a job that requires just 1.2 miles of daily travel.

6. The United States Postal Service has its own stamp cave.

Some of the most valuable stamps in the country are housed within SubTropolis.Americasroof, Wikimedia Commons // CC BY-SA 3.0

Need a stamp? Try looking in SubTropolis, a sprawling excavated limestone mine in Kansas City. Many companies operate out of the underground industrial park, and the USPS has gotten in on the act. The temperature and humidity level 150 feet underground make it an ideal hub for stamp storage and distribution.

7. The USPS also has a facility to decipher terrible handwriting.

Ever wonder how the USPS decodes awful penmanship? It calls in the experts. The Remote Encoding Center in Salt Lake City receives the system’s impossible-to-read mail. The center’s 1000 workers there take on every piece of mail that’s too challenging for the automated mail sorters to decipher or is otherwise incorrectly addressed. According a 2013 Deseret News report, these workers can translate a scribbled envelope into legible, usable delivery information in an average of four seconds.

8. United States Postal Service mailboxes weren’t always blue.

The postal service began painting its street mailboxes blue in 1971 [PDF], when it made the structural switch from the Post Office Department to the United States Postal Service. The color of boxes had varied in the century before that, including a stint in drab olive green after World War I thanks to a surplus of paint in that color.

9. The current postmaster general of the USPS started as a letter carrier.

In February 2015, Megan J. Brennan became the first female postmaster general in the United States. She rose up through the postal ranks, starting with a job as a letter carrier in 1986.

10. Dog attacks actually happen to workers for the United States Postal Service.

Postal workers, beware.Stebunik, Wikimedia Commons // CC BY 3.0

Dogs actually do attack USPS workers. In 2014, dogs attacked 5767 postal employees. Los Angeles was the biggest hotbed of canine attacks, with 74 mail carriers incurring pets’ wrath. Mail carriers are instructed to keep their satchels between their bodies and an aggressive dog, using the sack of mail as a buffer.

Dogs aren’t the only animals mail carriers have to worry about: Wasps have been known to build nests inside mailboxes.

11. The United States Postal Service helps crack criminal cases.

The USPS is skilled at catching criminals in the act. In 2013, law enforcement seized 46,000 pounds of narcotics from the mail and identified 778 criminals from fingerprints and other physical evidence found in mail.

12. Famous figures like Walt Disney and Steve Carell had mail service jobs.

Before they became household names, some political, literary, and TV greats had postal jobs. A 16-year-old Walt Disney was a mail carrier in 1918. William Faulkner served as the University of Mississippi’s postmaster from 1922 to 1924—he hated the job, and resigned after a postal inspector was sent to investigate complaints filed against him. In more recent history, comedic actor Steve Carell worked a rural mail route in Massachusetts.

10 Holiday Gifts Worth Splurging On

Amazon
Amazon

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

The holidays will be here before you know it—and it’s never too early to start gift shopping. Whether you’re browsing for yourself (you deserve it!), a friend, or a family member, there are plenty of splurge-worthy gifts on the market. We scoured the internet (you’re welcome) for everything from luxury candles to innovative hair tools to indoor herb gardens and tracked down 10 of the best holiday gifts money can buy.

1. Dyson Airwrap Complete Hair Styler; $500

Amazon

Your giftee will save money on a trip to the salon and be able to treat themselves to a professional blowout right in their own home using the Dyson Airwrap. The ultra-versatile tool can dry, curl, wave, and smooth strands—all without extreme heat. Even better? No blowdryer is required: The Dyson Airwrap dries and styles hair simultaneously.

Buy it: Amazon

2. Nespresso Vertuo Coffee and Espresso Machine with Aeroccino; $237

Amazon

They'll kick their coffee-buying habit to the curb once and for all with this state-of-the-art Nespresso machine, which boasts over 4200 rave reviews on Amazon. Not only does it brew espresso and coffee at the touch of a button in under 20 seconds, but it also comes complete with 12 complimentary Nespresso capsules.

Buy it: Amazon

3. Revolution Cooking High-Speed Smart Toaster; $300

Amazon

Calling all foodies: Prepare to geek out over this high-tech, touchscreen toaster. It also features a custom toasting algorithm (yes, that’s apparently a thing) to ensure that pastries, toast, bagels, and English muffins are crisped to perfection every single time. Plus, with five food settings, three toasting modes, and seven browning levels, the user will never have to endure burnt bread again.

Buy it: Amazon

4. Cuisinart Cast Iron 7-Quart Dutch Oven; $130

Amazon

Cuisinart's Dutch oven is a timeless staple (and it even comes with a lifetime warranty). Whether they're an amateur or professional chef, your giftee will appreciate this versatile cookware: it marinates, braises, bakes, or cooks. Choose from over a dozen colors, from peony pink to matte navy.

Buy it: Amazon

5. AeroGarden Harvest Indoor Hydroponic Garden; $100

Amazon

No green thumb, no problem. This indoor hydroponic garden from AeroGarden makes it easy for anyone to grow fresh herbs. The set includes several types of seeds (parsley, dill, thyme, mint, and two varieties of basil), along with all-natural plant nutrients. Plus, no soil = no mess = no cleanup.

Buy it: Amazon

6. Razorri Electric Pasta and Ramen Noodle Maker; $200

Amazon

Spaghetti, fettuccine, macaroni, ramen: The pastabilities are limitless with this electric pasta maker. Not only is it incredibly easy to use (just add flour, start the kneading function, and then add liquid), but it also makes up to three servings of pasta in under 10 minutes. Once the noodles are complete, cook them in boiling water for one-and-a-half to two minutes, and dig in!

Buy it: Amazon

7. Orolay Thickened Down Jacket; $140-$160

Amazon

With over 11,500 Amazon reviews, this sleek and stylish down jacket makes the ideal addition to their winter wardrobe. It’s ultra-soft and features a fleece-lined hood, knit cuffs, and six (!) roomy pockets to hold all of their essentials. Choose from 13 colors and 10 sizes.

Buy it: Amazon

8. Cuddle Dreams Premium Cashmere Throw Blanket; $190

Amazon

Not only is this uber-luxe cashmere throw incredibly soft, but it’s also extremely durable and guaranteed to last for years. Its buttery-soft texture features a blend of 75 percent cashmere and 25 percent merino wool, and it makes a stylish accent to any living room, den, or bedroom. Multiple colors are available.

Buy it: Amazon

9. Bartesian Premium Cocktail and Margarita Machine; $350

Amazon

This handy cocktail machine lets users enjoy all of their favorite drinks (think margaritas, whiskey sours, old-fashioneds, and cosmopolitans) with the push of a single button. They just add the alcohol of their choice, and they’re good to go! Bonus: The machine is dishwasher-safe, which makes for easy cleanup.

Buy it: Amazon

10. Voluspa Gilt Pomander 16-ounce Candle; $52

Amazon

This eye-catching 16-ounce scented candle from Voluspa features notes of spiced pomander, cardamom, and Japanese hinoki. (It’s also free of parabens and sulfates.) It will look equally impressive on a dining room table, bathroom vanity, a shelf in the living room, or front and center in the bedroom.

Buy it: Amazon

Sign Up Today: Get exclusive deals, product news, reviews, and more with the Mental Floss Smart Shopping newsletter!

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 is partly responsible for the phobia surrounding Friday the 13th.

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. Loki also played a part in inspiring fear of Friday the 13th.

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 Friday the 13th (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.

This story has been updated for 2020.