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Where Did Tennis Get Its Scoring System?

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Love? 15-30...40? What's the deal with tennis scoring? There’s no shortage of theories. Here are a few of them, along with input from sportscaster and former tennis pro Mary Carillo (pictured above with Rafael Nadal after his win in last night's U.S. Open men's final).

Love

You know how sometimes when a team in any sport comes up empty-handed on points, it’s said that there was a big ol’ goose egg on the scoreboard? Some people believe that a similar French expression is the reason zero points is called “love” in tennis. L’oeuf is French for “egg,” you see, so the thought is that over the years, we’ve slowly butchered the pronunciation into “love.”

Carillo agrees: “It’s the goose egg, exactly. Most tennis historians believe the French translation of ‘egg’ is probably the most likely theory.”

There's a less popular theory that we’ve managed to twist the Dutch or Flemish word “lof,” meaning “honor.” The idea is that the player with zero points is simply playing for honor—because he or she certainly isn’t playing for a win. But that’s not all the Dutch have up their sleeves: one more possibility stems from the lof in the phrase “iets voor lof doen,” which means to do something for praise.

The Oxford English Dictionary suggests that love really does mean “love.” The only thing keeping a scoreless player on the court is the love of the game.

A final “love” theory that doesn’t involve any kind of mistranslation or mispronunciation at all: When both players start at zero points and no one is winning or losing, they still have love for each other.

The 15-30-40 scoring

Now that “love” is as clear as mud, let’s figure out why tennis is scored in what appears to be a completely random jumble of numbers. Before there was tennis, there was a French game called jeu de paume (“palm game”) that was very similar to tennis, but players used their hands instead of a racquet. The scoring system we use for tennis today was based on jeu de paume’s system, but the reason for that 15-30-40-Game scoring is still a little shaky. There are three possibilities. First is the theory that, back in the pre-Revolution days, the 1000-plus jeu de paume courts in French were 90 feet total, 45 per side. Upon scoring, the server got to move up 15 feet. Another score meant another 15-foot scoot forward. Since a third score would put the server right at the net, 10 feet was the last bump forward.

If you’ve ever noticed the scoring system’s similarity to a clock face, you’re not alone. “That’s the theory I think is most common—that you’re just playing your way around the clock,” Carillo said. It makes even more sense when you know that in medieval numerology, the number 60 was considered a nice, round number, the way 100 is a satisfying set of digits today.

Finally, the Europeans were preoccupied with astronomy and sextant (one-sixth of a circle), which is 60 degrees, so they may have scored the game around the completion of a perfect circle. From the United States Tennis Association Official Encyclopedia of Tennis:

"In early records of the game in France, sets were played to four games. Since sixty degrees make a full circle when multiplied by six, it is thought that matches were six sets of four games each. Therefore, each point was worth fifteen degrees, or points, contributing to the whole. The game concluded when one player completed a full circle of 360 degrees."

Whichever one of these is the correct answer, it’s generally agreed that scoring used to be exactly what any logical person thinks it should be: 15, 30, 45, 60 (game). Over time, we’ve adapted 45 to 40 because it’s more clearly understood when yelled out on a court; “forty” can’t be confused with any other number.

Seinfeld's Theory

One of Carillo’s favorite scoring theories is not one you’ll find in history books. “I actually love the Seinfeld scoring system,” she told us. In typical Jerry Seinfeld fashion, he speculates that the points are awarded simply because playing tennis is just so damn hot:

Whatever the real reasons for the scoring system are, one thing's for certain: Tennis wouldn’t be tennis without the unique point tally. “I happen to love the scoring system,” Carillo said. “Because of it, you have games like the one that was won in 21 minutes [on Saturday], when Novak Djokovic won the semifinal against Stanislas Wawrinka. It was thrilling, it was absolutely thrilling. There was a standing ovation. As weird as the scoring system is, it just creates great tension and tactics in every game.”

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Big Questions
Why Do Cats Freak Out After Pooping?
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Cats often exhibit some very peculiar behavior, from getting into deadly combat situations with their own tail to pouncing on unsuspecting humans. Among their most curious habits: running from their litter box like a greyhound after moving their bowels. Are they running from their own fecal matter? Has waste elimination prompted a sense of euphoria?

Experts—if anyone is said to qualify as an expert in post-poop moods—aren’t exactly sure, but they’ve presented a number of entertaining theories. From a biological standpoint, some animal behaviorists suspect that a cat bolting after a deposit might stem from fears that a predator could track them based on the smell of their waste. But researchers are quick to note that they haven’t observed cats run from their BMs in the wild.

Biology also has a little bit to do with another theory, which postulates that cats used to getting their rear ends licked by their mother after defecating as kittens are showing off their independence by sprinting away, their butts having taken on self-cleaning properties in adulthood.

Not convinced? You might find another idea more plausible: Both humans and cats have a vagus nerve running from their brain stem. In both species, the nerve can be stimulated by defecation, leading to a pleasurable sensation and what some have labeled “poo-phoria,” or post-poop elation. In running, the cat may simply be working off excess energy brought on by stimulation of the nerve.

Less interesting is the notion that notoriously hygienic cats may simply want to shake off excess litter or fecal matter by running a 100-meter dash, or that a digestive problem has led to some discomfort they’re attempting to flee from. The fact is, so little research has been done in the field of pooping cat mania that there’s no universally accepted answer. Like so much of what makes cats tick, a definitive motivation will have to remain a mystery.

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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Big Questions
Why Do Baseball Managers Wear Uniforms?
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Basketball and hockey coaches wear business suits on the sidelines. Football coaches wear team-branded shirts and jackets and often ill-fitting pleated khakis. Why are baseball managers the only guys who wear the same outfit as their players?

According to John Thorn, the official historian of Major League Baseball since 2011, it goes back to the earliest days of the game. Back then, the person known as the manager was the business manager: the guy who kept the books in order and the road trips on schedule. Meanwhile, the guy we call the manager today, the one who arranges the roster and decides when to pull a pitcher, was known as the captain. In addition to managing the team on the field, he was usually also on the team as a player. For many years, the “manager” wore a player’s uniform simply because he was a player. There were also a few captains who didn’t play for the team and stuck to making decisions in the dugout, and they usually wore suits.

With the passing of time, it became less common for the captain to play, and on most teams they took on strictly managerial roles. Instead of suits proliferating throughout America’s dugouts, though, non-playing captains largely hung on to the tradition of wearing a player's uniform. By the early to mid 20th century, wearing the uniform was the norm for managers, with a few notable exceptions. The Philadelphia Athletics’s Connie Mack and the Brooklyn Dodgers’s Burt Shotton continued to wear suits and ties to games long after it fell out of favor (though Shotton sometimes liked to layer a team jacket on top of his street clothes). Once those two retired, it’s been uniforms as far as the eye can see.

The adherence to the uniform among managers in the second half of the 20th century leads some people to think that MLB mandates it, but a look through the official major league rules [PDF] doesn’t turn up much on a manager’s dress. Rule 1.11(a) (1) says that “All players on a team shall wear uniforms identical in color, trim and style, and all players’ uniforms shall include minimal six-inch numbers on their backs" and rule 2.00 states that a coach is a "team member in uniform appointed by the manager to perform such duties as the manager may designate, such as but not limited to acting as base coach."

While Rule 2.00 gives a rundown of the manager’s role and some rules that apply to them, it doesn’t specify that they’re uniformed. Further down, Rule 3.15 says that "No person shall be allowed on the playing field during a game except players and coaches in uniform, managers, news photographers authorized by the home team, umpires, officers of the law in uniform and watchmen or other employees of the home club." Again, nothing about the managers being uniformed.

All that said, Rule 2.00 defines the bench or dugout as “the seating facilities reserved for players, substitutes and other team members in uniform when they are not actively engaged on the playing field," and makes no exceptions for managers or anyone else. While the managers’ duds are never addressed anywhere else, this definition does seem to necessitate, in a roundabout way, that managers wear a uniform—at least if they want to have access to the dugout. And, really, where else would they sit?

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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