35 Lesser-Known Inventions of Famous Inventors

A photo of inventor Thomas Edison, who was born in Milan, Ohio, on February 11, 1847.
A photo of inventor Thomas Edison, who was born in Milan, Ohio, on February 11, 1847.
Wikimedia Commons // Public Domain

You've heard of the light bulb and the telephone, but what about Thomas Edison's terrifying talking doll and Alexander Graham Bell's metal detector? Below, in a list adapted from The List Show on YouTube, are just a few other lesser-known inventions of famous inventors.

1. Metal Detector // Alexander Graham Bell

In 1881, after President James Garfield was shot by Charles Guiteau, doctors struggled to locate the bullet—and spent a lot of time trying to find it by putting their dirty hands directly in Garfield’s body. So Bell made an electromagnetic device with a handle and a telephone receiver that was supposed to alarm when the field was interrupted by metal. He used the device on Garfield twice, but never found the bullet; the fact that Garfield’s mattress contained metal mesh probably didn’t help. In the end, Garfield died not from the bullet wound, but because of an infection likely caused by being operated on by doctors who hadn’t washed their hands. So even if Bell had found the bullet with his metal detector, it might not have made any difference.

2. and 3. Train Bathroom and Air Conditioner // Lewis Latimer

Bell wasn’t the only person involved in the invention of the telephone. Lewis Latimer was a colleague of Bell’s; he drafted the patent that Bell filed for the device. Latimer was also an inventor in his own right: In 1874, he patented a bathroom for a train, and in 1886, he patented an early version of an air conditioner.

4. Hydrodrome Boat // Alexander Graham Bell and Casey Baldwin

Back to Bell: He broke a world record with a boat he’d created with fellow inventor Casey Baldwin. The “hydrodrome” was 60 feet long and traveled at 70mph. Fins under the boat helped it move at that unprecedented pace. Bell hoped it would eventually lead to an aircraft that could lift off from the water.

5. and 6. A Remote-Controlled Boat and A Helicopter Plane // Nikola Tesla

Speaking of boats, in 1898, notable pigeon enthusiast and Tesla coil inventor Nikola Tesla wowed the crowd at an exhibition in Madison Square Garden with a 4-foot-long, battery-powered, remote-controlled boat. Tesla could control its propeller and rudder and even flash its lights using radio signals. At the time, not many people knew about radio waves, and the attendees were astounded. 

Tesla also had hopes of creating an aircraft. The last patent he ever received was for his “helicopter-plane.” It would become airborne the same way as a helicopter, with rotating blades. Once in the sky, the device would shift on its side and the blades would start acting like an airplane propeller. It also had wings like an airplane.

7., 8., and 9. Foot Warmers, a Bread Kneader, and a Device to Keep Trains on the Rails // Maria Beasley

Maria Beasley is best known for her inventions that improved barrel-making and life rafts. (Before her, life rafts were wooden and tended to sink.) But she had a few lesser known inventions: foot warmers, a bread kneader, and a device that prevented trains from derailing.

10. Custom Tools // Henry Ford

Henry Ford was an innovator from a young age. Starting at around 13 years old, he fixed watches for people in his community—and to do so, he invented his own tools. He used nails, knitting needles, and even parts of a corset to make instruments like screwdrivers and tweezers.

11. Soybean Car // Henry Ford and George Washington Carver

Later in life, Ford collaborated with George Washington Carver on the Soybean Car. It was made with 14 panels of plastic that had been created out of soybean and other crops. Ford presented the car in 1941, but World War II interrupted its momentum.

12. Cosmetic Cream // George Washington Carver

Carver also invented a cosmetic cream. He described it in the patent as a “vanishing cream of any desired or usual tint.” It was made of peanuts, contained salicylic acid and perfume, and had powder added for color. By the way, the patent for the cosmetic and the process used to create it was one of just three patents in his name, despite his many inventions and discoveries. The other two were related to producing paints and stains.

13. and 14. Performance Platforms and Huggable Hangers // Joy Mangano

If you’re a Home Shopping Network (or Jennifer Lawrence) fan, you probably know of Joy Mangano, most famous for the Miracle Mop. She also invented Performance Platforms, a type of sneaker with a platform heel that’s supposed to tone leg muscles, and Huggable Hangers, those thin, velvet hangers that fit very closely together.

15. Giving to Charity Over Text // Marian Croak

Marian Croak is currently best known for being a VP of Engineering at Google. She has over 100 patents related to voice-over Internet protocol, which is what allows us to Skype. Beyond that, she has 100 other patents, one of which is the process that gets used when someone donates to charity over text message.

16. Harpoon Gun // Clarence Birdseye

Clarence Birdseye is best known for creating the processes that allow for the entire frozen foods industry to exist. But he filed hundreds of patents in his lifetime. One was for a harpoon gun, and what set it apart from other harpoon guns was that it didn’t recoil after you shot it, which didn’t do much except for make shooting a little less annoying.

17., 18., and 19. A Robe Clasp, A Numbering Machine, and a "Dress Shield" // Margaret Knight

While working at a paper bag company during the 19th century, Margaret Knight invented a device that mechanized the bag cutting and folding process. It also gave the bags square bottoms, a unique feature at the time. A year before she died, The New York Times declared that “at the age of seventy [Margaret] is working twenty hours a day on her eighty-ninth invention” having already created a robe clasp, a numbering machine, and a “dress shield” to keep things from staining clothes.

20. and 21. Wooden Paddles and the Armonica // Benjamin Franklin

Like Ford, Benjamin Franklin started young. When he was 11, he made 10-inch wooden paddles to attach to his wrists, which he hoped would make him swim faster. They worked, but they were too heavy, so they tired him out.

In the mid-1700s, Franklin saw someone playing what were basically wine glasses with their fingers. So he created an instrument out of the concept: the armonica. It had 37 glass bowls, painted different colors for each note. You played it by pressing a foot pedal; that spun the bowls, which you’d touch with wet fingers. The armonica became quite popular—Marie Antoinette learned to play, and Mozart and Beethoven both composed music for the instrument. But the armonica’s popularity didn't last. Its rise coincided with a fear that music, of all things, could cause headaches, hysteria, and death, especially for performers. The armonica in particular became a scapegoat.

22. Mock Trial Card Game // Elizabeth Magie

Elizabeth Magie famously invented Monopoly as an anti-capitalist game known as The Landlord’s Game, before Charles Darrow stole the idea and sold it to Parker Brothers. But she’d actually previously worked with Parker Brothers: They had published her lesser-known lighthearted card game Mock Trial in 1910.

23., 24., and 25. A Diving Suit, a Giant Crossbow, and a Robotic Knight // Leonardo da Vinci

Leonardo da Vinci designed a few inventions that he didn’t create in real life, like the scuba suit. He hoped it would help with naval attacks. (In fact, he kept it an extremely closely guarded secret because he thought it had so much military potential.) The suit itself would be made out of leather and have tubes for air. And, naturally, there was a place for the wearer to pee.

Also for the military, Leonardo da Vinci designed a crossbow with a width of about 80 feet. It would fire large objects like bombs, but the main goal was to freak out your enemies.

Leonardo sketched a robotic knight, filled with gears and wheels, in 1495. Winding a crank would make its arms and mouth move. He also designed it to sit and stand. In the early 2000s, engineer Mark Rosheim used the artist’s design to create a small robot.

26. A Copier // James Watt

The Scottish inventor James Watt is best known for his work on the steam engine, but he also patented a copier in 1780. The technique involved two pages. You’d write on the top page, then use the device to press it against a thinner, see-through page. The ink would get transferred to the second page in reverse, which is why you wanted it to be translucent: You could read it from the other side.

27. An Innovative Air Conditioner // Maria Telkes

Maria Telkes immigrated to the U.S. during the 1920s, after getting her Ph.D. in physical chemistry at the University of Budapest. She went on to become an important solar energy power innovator during the 1940s at MIT. But, in the 1970s, she also had a part in another innovation: a type of air conditioner that used salts to essentially store cool air at night. This would then keep a place cooler during the warm part of the next day, which conserved power.

28. An Ophthalmoscope // Charles Babbage

Charles Babbage was a major early computer pioneer. He also suffered from double vision. So, he invented the first ophthalmoscope, which involved using a mirror to reflect light into a patient’s eye. The device also had an opening that a doctor could look through to see the inner eye. Babbage ended up abandoning the idea because the doctor he was working with wasn’t convinced the device worked and didn’t see the value in it. As a student, the doctor had been caught up in the Burke and Hare murders, which apparently made the doctor, quote, “temperamentally resistant to innovation,” according to The Lancet. Eventually, Hermann Helmholtz designed an ophthalmoscope independently.

29. Airplane Wing De-Icer // Katharine Burr Blodgett

Katharine Burr Blodgett’s most famous invention was non-reflective glass, which helps prevent glare and distortion. It was first used during the 1930s in the film industry, but then went on to change cars, eyeglasses, and even submarines forever. But Blodgett also came up with a way to de-ice airplane wings, which was hugely important during World War II.

30. Bicycles // The Wright Brothers

In addition to being airplane innovators, the Wright Brothers were bicycle innovators. They created bicycles called the St. Clair and the Van Cleve. In the early 20th century, they took a St. Clair and added wing-like parts so they could experiment with airplane wings.

31. A Molecular Knife // Dr. Flossie Wong-Staal

Dr. Flossie Wong-Staal was the first person to clone then genetically map HIV, an accomplishment that led to successful HIV testing. In her work with the virus, she also invented a “molecular knife”—an enzyme that could cut through the genetic information in cells.

32., 33., 34., and 35. A Voting Machine, An Electric Pen, A Ghost Detector, and a Talking Doll

As Thomas Edison once said, “I have gotten a lot of results! I know several thousand things that won’t work.” So let’s finish up with few lesser-known Thomas Edison inventions that were not as successful as the light bulb.

Edison’s first-ever patent was for a voting machine that he wanted to incorporate into the D.C. and Massachusetts State Legislature voting process. Legislators would each be given a switch which they could flip to “yes” or “no.” Each switch was electrically connected to a recorder that tallied the votes. But politicians didn’t like the idea—it would have sped up the process too much and prevented things like certain filibustering techniques.

Edison also made an electric pen that, when held over paper, would punch holes (so it was really more like a stencil), and that allowed it to make multiple copies of text at once. It was successful for a bit and eventually fell out of favor. But Samuel F. O’Reilly used it as his inspiration when he invented the electric tattoo needle.

During the 1920s, Edison created a device that was supposed to use light to distinguish tiny particles that came from deceased individuals. He didn’t believe in ghosts, but he did think there was still evidence of people’s personalities hanging around in the air after they died.

Finally, Edison released a terrifying talking doll in 1890 that would give Chucky a run for his money. Each Edison Talking Doll was two feet tall, weighed four pounds, and was equipped with a miniature version of Edison’s phonograph technology. On each cylinder were nursery rhymes, and a child got the doll to “speak” through a speaker in its chest by winding a crank on its back. But the dolls broke easily and definitely looked like they came to life at night. Plus, they cost up to $20 each, which would be about $575 today.

The dolls were a huge failure, and Edison yanked them from stores after they’d been out for just a few weeks. But audio of the dolls still exists, so you can take a listen here. Sweet dreams!

Amazon's Best Black Friday Deals: Tech, Video Games, Kitchen Appliances, Clothing, and More

Amazon
Amazon

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Black Friday is finally here, and Amazon is offering great deals on kitchen appliances, tech, video games, and plenty more. We will keep updating this page as sales come in, but for now, here are the best Amazon Black Friday sales to check out.

Kitchen

Instant Pot/Amazon

- Instant Pot Duo Plus 9-in-115 Quart Electric Pressure Cooker; $90 (save $40)

- Keurig K-Cafe Special Edition; $190 (save $30)

- Ninja OS301 Foodi 10-in-1 Pressure Cooker and Air Fryer; $125 (save $75)

- Nespresso Vertuo Next Coffee and Espresso Machine by Breville; $120 (save $60)

- KitchenAid KSMSFTA Sifter with Scale Attachment; $95 (save $75)

- Keurig K-Mini Coffee Maker; $60 (save $20)

- Cuisinart Bread Maker; $80 (save $97)

- Anova Culinary Sous Vide Precision Cooker; $139 (save $60)

- Aicook Juicer Machine; $35 (save $15)

- JoyJolt Double Wall Insulated Espresso Mugs - Set of Two; $14 (save $10)

- Longzon Silicone Stretch Lids - Set of 14; $16 (save $11)

- HadinEEon Milk Frother; $37 (save $33)

Home Appliances

Roomba/Amazon

- iRobot Roomba 675 Robot Vacuum with Wi-Fi Connectivity; $179 (save $101)

- ASAKUKI 500ml Premium Essential Oil Diffuser; $22 (save $4)

- Facebook Portal Smart Video Calling 10 inch Touch Screen Display with Alexa; $129 (save $50)

- Bissell air320 Smart Air Purifier with HEPA and Carbon Filters; $280 (save $50)

- Oscillating Quiet Cooling Fan Tower; $59 (save $31)

- TaoTronics PTC 1500W Fast Quiet Heating Ceramic Tower; $55 (save $10)

- Vitamix 068051 FoodCycler 2 Liter Capacity; $300 (save $100)

- Ring Video Doorbell; $70 (save $30)

Video games

Sony

- Marvel's Spider-Man: Game of The Year Edition for PlayStation 4; $20 (save $20)

- The Legend of Zelda: Link's Awakening; $40 (save $20)

- Hyrule Warriors: Age of Calamity; $50 (save $10)

- Marvel's Avengers; $25 (save $33)

- The Last of Us Part II for PlayStation 4; $30 (save $30)

- LEGO Harry Potter: Collection; $15 (save $15)

- Ghost of Tsushima; $40 (save $20)

- BioShock: The Collection; $20 (save $30)

- The Sims 4; $24 (save $20)

- God of Warfor PlayStation 4; $10 (save $10)

- Days Gonefor PlayStation 4; $20 (save $6)

- Luigi's Mansion 3 for Nintendo Switch; $40 (save $20)

Computers and tablets

Microsoft/Amazon

- New Apple MacBook Pro 16 inches with 512 GB; $2149 (save $250)

- Microsoft Surface Laptop 3 with 13.5 inch Touch-Screen; $1200 (save $400)

- Lenovo ThinkPad T490 Laptop; $889 (save $111)

- Amazon Fire HD 10 Tablet (64GB); $120 (save $70)

- Amazon Fire HD 10 Kids Edition Tablet (32 GB); $130 (save $70)

- Apple iPad Mini (64 GB); $335 (save $64)

- Vankyo MatrixPad S2 Tablet; $120 (save $10)

Tech, gadgets, and TVs

Apple/Amazon

- Apple Watch Series 3 with GPS; $120 (save $79)

- Seneo Wireless Charger, 3 in 1 Wireless Charging Station; $16 (save $10)

- SAMSUNG 75-inch Class Crystal 4K Smart TV; $998 (save $200)

- Nixplay 2K Smart Digital Picture Frame 9.7 Inch Silver; $238 (save $92)

- All-New Amazon Echo Dot with Clock and Alexa (4th Gen); $39 (save $21)

- MACTREM LED Ring Light 6" with Tripod Stand; $16 (save $3)

- Amazon Fire TV Stick with Alexa Voice Remote; $28 (save $12)

- DR. J Professional HI-04 Mini Projector; $93 (save $37)

Headphones and speakers

Beats/Amazon

- Beats Solo3 Wireless On-Ear Headphones; $120 (Save $80)

- Apple AirPods Pro; $169 (save $50)

- Anker Soundcore Upgraded Bluetooth Speaker; $22 (save $8)

- Powerbeats Pro Wireless Earphones; $175 (save $75)

- JBL Boombox; $280 (save $120)

Movies and TV

HBO/Amazon

- Game of Thrones: The Complete Series; $115 (save $89)

- Jurassic World 5-Movie Set; $23 (save $37)

- Deadwood: The Complete Series; $42 (save $28)

- Back to the Future Trilogy; $15 (save $21)

Toys and Games

Amazon

- Awkward Family Photos Greatest Hits; $15 (save $10)

- Exploding Kittens Card Game; $10 (save $10)

- Cards Against Humanity: Hidden Gems Bundle; $14 (save $5)

- LOL Surprise OMG Remix Pop B.B. Fashion Doll; $29 (save $6)

- LEGO Ideas Ship in a Bottle 92177 Expert Building Kit; $56 (save $14)

Furniture

Casper/Amazon

- Casper Sleep Element Queen Mattress; $476 (save $119)

- ZINUS Alexis Deluxe Wood Platform Bed Frame; $135 (save $24)

- ROMOON Dresser Organizer with 5 Drawers; $59 (save $11) 

- AmazonBasics Room Darkening Blackout Window Curtains; $26 (save $5)

- Writing Desk by Caffoz; $119 (save $21)

- SPACE Seating Office Support Managers Chair; $112 (save $116)

- Rivet Globe Stick Table Lamp; $53 (save $17)

- Christopher Knight Home Merel Mid-Century Modern Club Chair; $188 (save $10)

- Walker Edison Furniture Industrial Rectangular Coffee Table; $121 (save $48)

Beauty

Haus/Amazon

- MySmile Teeth Whitening Kit with LED Light; $21 (save $12) 

- Cliganic USDA Organic Lip Balms Set of Six; $6 (save $4)

- HAUS LABORATORIES By Lady Gaga: LE RIOT LIP GLOSS; $7 (save $11)

- Native Deodorant for Men and Women Set of Three; $25 (save $11) 

- BAIMEI Rose Quartz Jade Roller & Gua Sha; $14 (save $3)

- Honest Beauty Clearing Night Serum with Pure Retinol and Salicylic Acid; $20 (save $8)

- WOW Apple Cider Vinegar Shampoo and Hair Conditioner Set; $30 (save $5) 

- La Roche-Posay Effaclar Purifying Foaming Gel Cleanser; $15 (save $5)

- wet n wild Bretman Rock Shadow Palette; $9 (save $6)

- EltaMD UV Daily Tinted Face Sunscreen Moisturizer with Hyaluronic Acid; $25 (save $6)

Clothes

Ganni/Amazon

- Ganni Women's Crispy Jacquard Dress; $200 (save $86) 

- The Drop Women's Maya Silky Slip Skirt; $36 (save $9)

- Steve Madden Women's Editor Boot; $80 (save $30)

- adidas Women's Roguera Cross Trainer; $40 (save $25)

- Line & Dot Women's Elizabeth Sweater; $74 (save $18)

- Levi's Men's Sherpa Trucker Jacket; $57 (save $41)

- Adidas Men's Essentials 3-Stripes Tapered Training Joggers Sweatpants; $28 (save $12)

- Timex Men's Weekender XL 43mm Watch; $32 (save $20)

- Ray-Ban Unisex-Adult Hexagonal Flat Lenses Sunglasses; $108 (save $46) 

- Reebok Men's Flashfilm Train Cross Trainer; $64 (save $16)

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25 Offbeat Holidays You Can Celebrate in December

ivanastar/iStock via Getty Images
ivanastar/iStock via Getty Images

Whether you're a holiday fanatic who wants even more to celebrate, or a Scrooge with a burning desire to buck tradition, we've got plenty of offbeat observances to put on your calendar.

1. December 1: Giving Tuesday

After indulging on Thanksgiving, and shopping on Friday, Monday, and probably the whole weekend in between, Giving Tuesday—which occurs annually on the Tuesday following Thanksgiving—encourages people to engage in charitable activities.

2. December 4: National Cookie Day

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December isn’t exactly lacking in opportunities to indulge in sweet treats, but today it’s your offbeat-holiday-given right to mix, bake, and/or eat as many cookies as you can handle.

3. December 5: Bathtub Party Day

There's a lot to be done between now and the end of the year. Take a minute to breathe, relax, and take in a soak.

4. December 5: International Ninja Day

The official website of Ninja Day alleges this holiday not only honors all things stealth and nunchucks, but also combats the more nautical offbeat holiday Talk Like a Pirate Day, which takes place in September. Creep, sneak, or redirect all of your URLs to Ninja activity—as long as you forgo the “arrrr matey’s” and eye patches for ominous silence and masks, you’re correctly celebrating this international holiday.

5. December 6: National Pawnbrokers Day

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If you thought good ol' St. Nicholas was the patron saint of reindeer and stockings, think again: The actual Nikolaos of Myra was the patron of things like the falsely accused and pawnbrokers, and on this day we acknowledge the latter.

6. December 9: Weary Willie Day

Professional clown Emmett Kelly created one of the more memorable clown characters of the 20th century: “Weary Willie.” Unlike many of his clown predecessors, Weary Willie opted out of white face paint and broad slapstick for the “tramp” look popular among Depression-era derelicts. One of his signature routines involved attempting to sweep up after circus acts, and failing in spite of himself—to the delight and empathy of the audience.

7. December 10: Jane Addams Day

December 10 is the day that the Nobel Prize Award Ceremonies have been held every year since 1901. Consequently, there are a lot of firsts that fall on this date, like the first American woman to be honored. That would be Jane Addams, founder of our current social work industry and prominent women's suffrage leader. On the anniversary of that award, given in 1931, we remember her life and work.

8. December 11: Official Lost And Found Day

Visit a thrift store, see if you can find that book you’ve misplaced, or invest in a memory-boosting regime so you’ll be losing things less frequently.

9. December 12: Poinsettia Day

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This day doesn't just celebrate the festive flower—it also marks the death of its namesake, Joel Roberts Poinsett. The botanist (and first U.S. Ambassador to Mexico) brought clippings of Euphorbia pulcherrima back to the States from southern Mexico, and grew the plant at his South Carolina home.

10. December 12: Gingerbread Decorating Day

Whether you’re a craftsman or an eater, today is the day for you.

11. December 13: National Day Of The Horse

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In 2004, the Senate signed legislation to officially make the second Saturday of December the National Day of the Horse. We really shouldn’t have to explain the reason horses need to be celebrated—just look at them!

12. December 13: National Cocoa Day

The weather outside is starting to get frightful, but what better cure for the temperature blues than a nice cup of hot cocoa? A down coat or a wool hat simply can’t compete in the taste department.

13. December 14: Monkey Day

Michael Warren/iStock via Getty Images

Officially, Monkey Day is an “annual celebration of all things simian, a festival of primates, a chance to scream like a monkey and throw feces at whomever you choose.” The origins of the holiday are unknown, though it has been observed since at least 2003.

14. December 15: Cat Herders Day

Technically this day is for all those who work jobs that could be described as like trying to herd cats, but it’s also probably acceptable to celebrate by trying to wrangle a cute feline.

15. December 16: Barbie And Barney Backlash Day

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Doesn’t seem like a coincidence that this holiday occurs in December: It’s the one day a year when you can tell your kids that Barbie and Barney don’t exist.

16. December 17: Wright Brothers Day

Made an official holiday in 1963 by Presidential Proclamation, this holiday marks the day in 1903 when Orville and Wilbur Wright achieved the first ever successful (documented) controlled airplane flight near Kitty Hawk, North Carolina.

17. December 18: Underdog Day

Observed annually on the third Friday of December since 1976, this is a reminder to honor the little guy. We’re always rooting for them, but there’s a holiday to celebrate, too.

18. December 21: Humbug Day

Michael Burrell/iStock via Getty Images

Get out all your bahs and scowls and growls now: no one will tolerate them come Christmas.

19. December 21: Phileas Fogg Win A Wager Day

In Jules Verne's 1873 classic novel Around the World in 80 Days, Phileas Fogg bets that he can travel the entire globe, between 8:45 p.m. on October 2, and 8:45 p.m. on December 21. Keep an eye out for him on this day.

20. December 22: Forefathers’ Day

On December 21, 1620 (it was a Monday) the Pilgrims aboard the Mayflower landed in Plymouth, Massachusetts, and since that basically kick-started our country's history since then, we celebrate it.

21. December 23: Festivus!

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For those who shy away from the more traditional December holidays, there’s always Festivus for the rest of us. Created by a Seinfeld writer's father and popularized by Frank Costanza, this secular holiday that involves gathering around an aluminum pole and airing your grievances has continued to gain a following since its introduction in 1997. If you haven’t seen the episode, there’s an entire website that spells out how to celebrate Festivus from start to finish. (Test your Festivus knowledge with this quiz.)

22. December 25: A’phabet Day

A pun on noel, this offbeat ce'ebration is designed to high'ight the arbitrary nature of many of the year's si''ier ho'idays. Whi'e you're unwrapping presents and eating your Christmas feast, 'eave a'' the Ls out of written and spoken communication for a festive activity that wi'' sure'y infuriate your 'oved ones.

23. December 26: National Whiners Day

Get it all out, whiners. Today is your day.

24. December 29: Tick Tock Day

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In case you needed another reminder of the inevitable passage of time and/or an occasion to reevaluate how those 2019 resolutions are going!

25. December 31: Make Up Your Mind Day

Tomorrow’s a new year! Time to fight that indecisiveness and make a decision—maybe even a resolution, if you will.