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Why Are Public Toilet Seats U-Shaped?

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There’s a difference between a public toilet and the one in your house, and it’s not the smell: their seats are shaped differently. Almost all public restrooms have what are called open front toilet seats, which are shaped like the letter u and have an opening at the front. Most private bathrooms, by contrast, have oval or round toilet seats that wrap all the way around the toilet. Why the gap?

The two-prong, open-front seat is required by the plumbing codes adopted by most public authorities in the U.S. “All water closet seats, except those within dwelling units, shall be either of the open front type or have an automatic seat cover dispenser,” as California’s state plumbing code reads [PDF]. The requirement was first included in the American Standard National Plumbing Code in 1955, and in the Uniform Plumbing Code in 1973, according to Dan Cole, a Technical Services Manager with the International Association of Plumbing and Mechanical Officials (IAPMO).

This is largely a matter of hygiene. No matter what kind of junk you’re packing, u-shaped seats give you a little breathing room to avoid touching the seat with your genitals, and provide one less place for urine to splash.

Open-front toilet seats are largely designed to make it easier for women to wipe, according to Lynne Simnick, the senior vice president of code development at the IAPMO. The opening is designed to “allow women to wipe the perineal area after using the toilet without contacting the seat,” she says. So basically, open toilet seats are designed for front-wipers. (Clearly the ladies in question have not been lectured on how to prevent UTIs.)

U-shaped seats are also cheaper, since they use less material. And they’re less likely to be stolen, according to Roger Barry, the managing director of Healthmatic, a UK-based company that designs and manages public restrooms. Though I question why anyone would want to steal a public toilet seat, he says that theft is a major problem. “The appearance of u-shaped seats is something that has dampened in the UK,” he reports, mostly because public toilets are no longer fitted with toilet seats at all to combat stealing.

Indeed, we should be grateful to have any toilet seats at all in public washrooms.

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Why Does the Queen Have Two Birthdays?
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On April 21, Her Majesty Queen Elizabeth II will turn 92 years old. To mark the occasion, there are usually a series of gun salutes around London: a 41 gun salute in Hyde Park, a 21 gun salute in Windsor Great Park, and a 62 gun salute at the Tower of London. For the most part, the monarch celebrates her big day privately. But on June 9, 2018, Her Majesty will parade through London as part of an opulent birthday celebration known as Trooping the Colour.

Queen Elizabeth, like many British monarchs before her, has two birthdays: the actual anniversary of the day she was born, and a separate day that is labeled her "official" birthday (usually the second Saturday in June). Why? Because April 21 is usually too cold for a proper parade.

The tradition started in 1748, with King George II, who had the misfortune of being born in chilly November. Rather than have his subjects risk catching colds, he combined his birthday celebration with the Trooping the Colour.

The parade itself had been part of British culture for almost a century by that time. At first it was strictly a military event, at which regiments displayed their flags—or "colours"—so that soldiers could familiarize themselves. But George was known as a formidable general after having led troops at the Battle of Dettingen in 1743, so the military celebration seemed a fitting occasion onto which to graft his warm-weather birthday. Edward VII, who also had a November birthday, was the first to standardize the June Trooping the Colour and launched a tradition of a monarchical review of the troops that drew crowds of onlookers.

Even now, the date of the "official" birthday varies year to year. For the first seven years of her reign, Elizabeth II held her official birthday on a Thursday but has since switched over to Saturdays. And while the date is tied to the Trooping the Colour in the UK, Commonwealth nations around the world have their own criteria, which generally involve recognizing it as a public holiday.

Australia started recognizing an official birthday back in 1788, and all the provinces (save one) observe the Queen's Birthday on the second Monday in June, with Western Australia holding its celebrations on the last Monday of September or the first Monday of October.

In Canada, the official birthday has been set to align with the actual birth date of Queen Victoria—May 24, 1819—since 1845, and as such they celebrate so-called Victoria Day on May 24 or the Monday before.

In New Zealand, it's the first Monday in June, and in the Falkland Islands the actual day of the Queen's birth is celebrated publicly.

All in all, just another reason it's great to be Queen.

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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What Is the Meaning Behind "420"?
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Whether or not you’re a marijuana enthusiast, you’re probably aware that today is an unofficial holiday for those who are. April 20—4/20—is a day when pot smokers around the world come together to, well, smoke pot. Others use the day to push for legalization, holding marches and rallies.

But why the code 420? There are a lot of theories as to why that particular number was chosen, but most of them are wrong. You may have heard that 420 is police code for possession, or maybe it’s the penal code for marijuana use. Both are false. There is a California Senate Bill 420 that refers to the use of medical marijuana, but the bill was named for the code, not the other way around.

As far as anyone can tell, the phrase started with a bunch of high school students. Back in 1971, a group of kids at San Rafael High School in San Rafael, California, got in the habit of meeting at 4:20 to smoke after school. When they’d see each other in the hallways during the day, their shorthand was “420 Louis,” meaning, “Let’s meet at the Louis Pasteur statue at 4:20 to smoke.”

Somehow, the phrase caught on—and when the Grateful Dead eventually picked it up, "420" spread through the greater community like wildfire. What began as a silly code passed between classes is now a worldwide event for smokers and legalization activists everywhere—not a bad accomplishment for a bunch of high school stoners.

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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