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That feeling when the clock strikes midnight and it's Odd Day // via iStock
That feeling when the clock strikes midnight and it's Odd Day // via iStock

Happy "Odd Day!" (It's the Last One of the Century)

That feeling when the clock strikes midnight and it's Odd Day // via iStock
That feeling when the clock strikes midnight and it's Odd Day // via iStock

Do you feel that holiday magic in the air? The contagious festive cheer that blesses everyone, young and old? "Odd Day" is upon us, that special time when the calendar features three consecutive uneven numbers: 11/13/15.

Odd Day is the brain child of retired California teacher Ron Gordon, who gets a kick out of finding patterns in dates. His first mathematical holiday was “Square Root Day” in 1981 (9/9/81…9*9=81). After a few press outlets picked up the story, Gordon kept the ball rolling. He was on top of 2004's Square Root Day (2/2/04), and will be all over 4/4/16, don’t you worry. Gordon is also behind “Ones Upon a Days” (1/1/11, 11/11/11, etc.), and “Trumpet Day,” which won’t happen for another seven years (2/2/22…”toot toot”).

If you think Gordon has painted himself into a corner with America’s month/day/year sequencing, you've got another thing coming. He already had a successful promotional push for the overseas version of "Tic Tac Toe Day," a fully sequential holiday, two years ago on December 11, 2013.

On Gordon’s Odd Day website, OddDay.net, he notes there are only six Odd Days in a century, and today “marks the end of this parade of Odd Days which began with 1/3/05.” Another one won't occur until January 3, 2105. We'll all likely be dead by then, so make this Odd Day count (somber pun intended, oddly).

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7 Surprising Uses for Tequila
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Happy National Margarita Day! While you could celebrate by having a few drinks, you could also skip the hangover by unlocking one of tequila's amazing abilities outside of the glass. Many spirits are useful for activities beyond sipping (vodka, for example, is a great stain and odor remover), but tequila holds some particularly magical powers. Here are just a few of them.

1. SYNTHETIC BAUBLE

In 2008, a team of scientists in Mexico discovered that when the heated vapor from an 80-proof tequila blanco was combined with a silicon or stainless steel substrate, it resulted in the formation of diamond films. These films can be used in commercial applications, such as electrical insulators, or to create one big fake diamond. Who knew that spending $50 on a bottle of Don Julio was such a wise investment?

2. ALTERNATIVE ENERGY SOURCE

Keeping with the science theme: In 2011, researchers at England’s University of Oxford suggested that we may one day be gassing up our cars with tequila. They identified agave, the plant from which tequila is produced, as a potential biofuel source—and a particularly attractive one, as the plant itself is not consumed by humans and can thrive in desert climates.

3. WEIGHT LOSS SUPPLEMENT

Scientists have long promoted the potential benefits of the agave plant for its ability to help dissolve fats and lower cholesterol. The bad news? These properties get a bit diluted when the plant is distilled into alcohol. Even more so when it's whipped into a sugary margarita.

4. SLEEP AID

Take three or more shots of tequila and you’re bound to pass out. A single shot can have the same effect—just not in that drunken stupor kind of way. Relaxation is one of the positive side effects of tequila drinking; a small amount (1 to 1.5 ounces) before bedtime can reportedly help you fall asleep faster and sleep more soundly.

5. COLON CLEANSER

Too much of a good thing may not bring a welcome turn of events for your liver … but your colon will thank you! Researchers at Mexico’s University of Guadalajara have identified the blue agave as a potentially helpful source for delivering drugs to the colon in order to treat colitis, IBS, Crohn’s disease and even cancer.

6. DIABETES PREVENTATIVE

If Ernest Hemingway had known about the healing properties of tequila, his signature drink might have been a margarita instead of a daiquiri. In 2010, experiments conducted at Mexico’s Polytechnic Institute of Guanajuato revealed that the agave plant (which is high in fructans, a fructose polymer) could stimulate the GLP-1 hormone, aiding in increased insulin production.

7. COLD REMEDY

“Plenty of liquids” is a well-known remedy for getting oneself out from under the weather. But expanding that definition to include a kicked-up shot of tequila makes a day laid out on the couch sound much more appealing. In the 1930s, doctors in Mexico recommended the following concoction to fight off a cold.

.5 ounce of tequila blanco
.5 ounce of agave nectar (to eliminate bacteria and soothe sore throats)
.5 ounce of fresh lime juice (for Vitamin C)

Though some people (including tequila companies) swear by its healing powers, others say it's hogwash.

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Big Questions
Where Should You Place the Apostrophe in President's Day?
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Happy Presidents’ Day! Or is it President’s Day? Or Presidents Day? What you call the national holiday depends on where you are, who you’re honoring, and how you think we’re celebrating.

Saying "President’s Day" infers that the day belongs to a singular president, such as George Washington or Abraham Lincoln, whose birthdays are the basis for the holiday. On the other hand, referring to it as "Presidents’ Day" means that the day belongs to all of the presidents—that it’s their day collectively. Finally, calling the day "Presidents Day"—plural with no apostrophe—would indicate that we’re honoring all POTUSes past and present (yes, even Andrew Johnson), but that no one president actually owns the day.

You would think that in the nearly 140 years since "Washington’s Birthday" was declared a holiday in 1879, someone would have officially declared a way to spell the day. But in fact, even the White House itself hasn’t chosen a single variation for its style guide. They spelled it “President’s Day” here and “Presidents’ Day” here.


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Maybe that indecision comes from the fact that Presidents Day isn’t even a federal holiday. The federal holiday is technically still called “Washington’s Birthday,” and states can choose to call it whatever they want. Some states, like Iowa, don’t officially acknowledge the day at all. And the location of the punctuation mark is a moot point when individual states choose to call it something else entirely, like “George Washington’s Birthday and Daisy Gatson Bates Day” in Arkansas, or “Birthdays of George Washington/Thomas Jefferson” in Alabama. (Alabama loves to split birthday celebrations, by the way; the third Monday in January celebrates both Martin Luther King, Jr., and Robert E. Lee.)

You can look to official grammar sources to declare the right way, but even they don’t agree. The AP Stylebook prefers “Presidents Day,” while Chicago Style uses “Presidents’ Day.”

The bottom line: There’s no rhyme or reason to any of it. Go with what feels right. And even then, if you’re in one of those states that has chosen to spell it “President’s Day”—Washington, for example—and you use one of the grammar book stylings instead, you’re still technically wrong.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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