22 little-known facts about the 'Harry Potter' series

harry potter
There are some things you might not know about the "Harry Potter" series.
Warner Bros. Pictures
  • Controversial author J.K. Rowling's "Harry Potter" books-turned-movies are a cultural phenomenon.
  • Rowling found inspiration for the setting of "Harry Potter" in Edinburgh, Scotland.
  • Most character names havea special meaning— and some are inspired by real people.
  • Actor Haley Joel Osment could have been cast as Harry Potter instead of Daniel Radcliffe.
  • Visit Insider's homepage for more stories.

Whether you're ahardcore fanor a Mugglewho's only seen the movies, there's no denying that "Harry Potter" is a cultural phenomenon.

Keep reading to learn 20 surprising facts aboutcontroversial author J.K. Rowling's magical series, from how she named her characters to how technology brought the films to life.

Rowling and Harry Potter share a birthday.

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J.K. Rowling and Daniel Radcliffe as Harry Potter.
Getty Images/ Warner Bros Pictures

The author, who turned 55 this year, and the wizard were both bornon July 31.

Rowling gave her characters names that reflect their roles in the series.

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The names were carefully chosen.
Warner Bros.

Fans can all agree that Rowling's world-building is superb ― andthe whimsical names she gave her charactersare no exception. On Pottermore, she revealed that, early in the creative process, she came up withnames for 40 Hogwarts students in Harry's year― every member of the Golden Trio included.

For example, Harry's namereferences his leadership qualitiesand Ron's pertains to his role as a sidekick.

"Harry" is the middle-English version of "Henry," a name popular among English kings through the centuries. For "Ronald," Rowling seemingly looked to the Old Norse "Rögnvaldr," a title for a ruler's adviser.

In contrast, Hermione's name, taken from Shakespeare's "The Winter's Tale" (and Greek mythology, more broadly) has less to do with her own traits than with her Muggle parents' desire to pick a clever moniker.

You never know when inspiration will strike ― and Rowling jotted down the Hogwarts house names on an airplane vomit bag.

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Inspiration hit on a plane.
Warner Bros Studios

Many people,celebs included, strongly identify with a specific Hogwarts house.

You might be surprised to learn, then, that Rowling first wrote down the words Gryffindor, Slytherin, Ravenclaw, and Hufflepuff on the back of an airplane vomit bag. She revealed this tidbiton Twitter in 2017.

Harry Potter was named for his great-grandfather.

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This is how it intersects with "Fantastic Beasts."
Warner Brothers

According to Pottermore (which has since become Wizarding World), Harry Pottershares a name with his great-grandfather.

Although this ancestor ― who lived in the late 19th century and early 20th century ― doesn't appear in the books, his timeline would intersect with the "Fantastic Beasts" era.

The magical plants in the series all come from a real-life compendium of flora.

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Mugwort and toadflax are real.
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At a glance, plant names like "Mugwort" and "toadflax" sound like words pulled from Rowling's boundless imagination. But these flora actually exist in the Muggle world.

As the author explainedin a 2003 interview with CBS' "60 Minutes,"the plants in the series come from a compendium called "The Complete Herbal" by English botanist and herbalist Nicholas Culpeper.

But only one character in the Harry Potter universe is a figure from Muggle history.

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Nicolas Flamel is also a real person.
Warner Bros Studios

Nicolas Flamel, the eponymous sorcerer from "Sorcerer's Stone," was a French businessman and scribe born in the 14th century. The real Flamel's connection to alchemy, embellished after his death, is at best tenuous.

Edinburgh, Scotland, where Rowling resides, provided a ton of inspiration for the series.

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Edinburgh inspired Hogwarts.
f11photo/Shutterstock

Scotland's capital is teeming with Gothic architecture, cobblestone streets, and narrow passageways.

Rowlingwas enchanted by the city's locales, fromGreyfriars Kirkyard― where the "real" Tom Riddle is buried ― to George Heriot's School, a private institution whose turreted building inspired Hogwarts.

You can even visitthe cafes where Harry's story began, namely The Elephant House, the so-called "Birthplace of Harry Potter" ― be sure to check out the bathroom, which is covered in Potter-centric graffiti left by fans over the years ― andSpoon, a restaurant that Rowling frequented in its former incarnation as Nicolson's Cafe.

Even Stephen King was freaked out by Dolores Umbridge.

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King was scared by Umbridge.
IMDb/Warner Bros.

Forget Voldemort ― one-time Defense Against the Dark Arts professor Dolores Umbridge has been deemed one of fiction's creepiest villains by none other than famed horror writer Stephen King.

"The gently smiling Dolores Umbridge, with her girlish voice, toadlike face, and clutching, stubby fingers, is the greatest make-believe villain to come along since Hannibal Lecter," King wrote inhis 2009 review of "Order of the Phoenix" for Entertainment Weekly.

Like the multitude of spells in the series, Hogwarts' official motto is also in Latin.

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Latin plays a big role in this world.
Warner Bros.

It's no secret that Rowling, whostudied Classical languages and mythologyat Exeter University, is familiar with Latin.

Not only do the series'many spellscome from that ancient language ― but also so does Hogwarts' motto, "Draco dormiens nunquam titillandus" ("Never tickle a sleeping dragon").

“你知道的,大多数学校的口号是这个ngs like persevere and nobility, clarity, and fidelity or something, it just amused me to give an entirely practical piece of advice for the Hogwarts school motto," Rowling explainedin a 2005 BBC interview.

The "Harry Potter" books have been translated into around 80 languages, from Albanian to Hebrew to Scots.

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哈利波特是基本上每个并可用age.
Kirsten Acuna / Business Insider

Sellingmore than 500 million copies worldwide, the "Harry Potter" books have been translated into 80 different languages — recently,Scots, a language spoken as a first language by90,000 people.

It may be hard to imagine someone other than Daniel Radcliffe as Harry, but the role could have been played by another actor.

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Haley Joel Osment could have been Harry Potter.
Warner Bros.

Prior to a creative row with Rowling, Steven Spielberg was pegged to direct "Sorcerer's Stone" ― and he wanted Haley Joel Osment (of "Sixth Sense" fame) to play the Chosen One.

In fact, Daniel Radcliffe beat out more than 300 child actors for the part of a lifetime,according to The Telegraph.

Peeves, the mischievous Hogwarts ghost, was supposed to appear in the films.

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Peeves didn't end up making an appearance in the film.
Chioric/Shutterstock

One of themost notable differences between the books and the moviesis mischievous Hogwarts ghost Peeves' absence from the film adaptations.

已故的英国喜剧演员和演员里克梅奥尔actually cast as the poltergeist in "Sorcerer's Stone" — but director Chris Columbus cut Mayall's scenes after a few weeks of shooting because he didn't like the look of the character onscreen.

"It was three weeks later, so I was in the film for around three weeks and then they cut me out. But I still got the money," Mayall saidduring an interview for his 2011 film "When Evil Calls: The Raven.""So that is the most exciting film I've ever been in because I got the oodle and I wasn't in it. Fantastic."

But there was a secret, film-exclusive character hidden in the newspaper props designed for the movies.

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The Ginger Witch frequented the front page of newspapers.
Warner Bros Pictures

Design firmMinaLima, which created fake newspapers for many of the films, hid a secret character in the magical periodicals. Known asthe Ginger Witch, this elusive lady is a criminal whose escapades span decades.

First appearing in "Prisoner of Azkaban," you'll also spot her in the "Fantastic Beasts" movies.

When she invented Dementors, Rowling drew from her past experiences with depression.

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To Rowling, the Dementors represent depression.
Warner Bros.

When she was in her 20s, Rowling struggled with depression.

During an interview with Oprah Winfrey, she shared that Dementors are based on the "hollowed-out feeling" of depression.

"I know sadness. Sadness is to cry and to feel. But it's that cold absence of feeling — that really hollowed-out feeling. That's what Dementors are," she said.

Rowling planned in advance who would meet a grim fate in the series — but she decided to spare one character's life at the last minute.

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JK Rowling changed her mind about killing off Arthur Weasley.
Warner Brothers

Character deaths are one of the narrative elements that Rowling plotted in advance.

Originally, she planned for Ron's dad, Arthur Weasley,to meet a grim fate in "Order of the Phoenix"— but she changed her mind.

"I think part of the reason for that is there were very few good fathers in the book," she saidin an interview with "Today" in 2007. "In fact, you could make a very good case for Arthur Weasley being the only good father in the whole series."

To prevent early leaks of "Harry Potter and the Deathly Hallows," the series' publisher, Bloomsbury, gave the seventh and final book some quirky code names.

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The publisher hoped to keep book leaks to a minimum.
Warner Bros Pictures

Early proofs and print-outs of "Deathly Hallows" were given humorousred-herring titlessuch as "Edinburgh Potmakers" and "The Life and Times of Clara Rose Lovett: An epic novel covering many generations."

Evanna Lynch made some of Luna Lovegood's jewelry.

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Evanna Lynch as Luna Lovegood.
Warner Bros.

One of the "Harry Potter" costume designers, Jany Temime, previously told Insider that actress Evanna Lynch helped craft a lot of her character's jewelry.

In particular, Lynch made Luna's famous beaded, radish-shaped earrings herself.

"It was an excellent collaboration," Temime recalled. "She was a very clever kid to work with."

Some of the most expensive costumes to make were the Hogwarts uniforms.

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Some of the Hogwarts uniforms include silk ties.
Warner Bros.

Since they included silk ties and wool sweaters, the Hogwarts uniforms were some of the most expensive costumes in the series to make.

"I never wanted to use anything but the most perfect material," she previously told Insider. "The ties are in silk, we used wool [for the sweaters], we used a very expensive material for the gowns."

But Temime said theselooks were worth the investmentsince "Harry Potter" film shoots could last a while and cheaper materials "would have looked terrible after one month."

Special effects in the films ranged from green screens to animatronics.

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Not all special effects were made in the editing room.
Warner Bros

FromQuidditch sequencestothe flying books in Hogwarts' library, green-screen technology played an essential part in bringing the magic of the "Harry Potter" universe to the big screen.

Not every special effect, however, was added post-production. Animatronics were used for creaturessuch as Professor Sprout's baby mandrakesand the "Monster Book of Monsters." There was also an animatronic Buckbeak used for close-up shots of the Hippogriff.

The Quidditch brooms weren't your run-of-the-mill props.

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The brooms had to be sturdy enough to be ridden.
Warner Bros.

The brooms were crafted from airplane-grade titanium.

"People think of them as a prop the kids are carrying around, but in reality, they have to sit on them," Eddie Newquist, chief creative officer of Global Entertainment Services — the firm responsible for The Harry Potter Exhibition ―told Popular Mechanicsin 2011.

"They have to be mounted onto motion-control bases for green-screen shots and special-effects shots, so they have to be very thin and incredibly durable," he added.

Some of the food on set was real.

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Sometimes the cast of "Harry Potter" actually got to feast.
Warner Bros Pictures

Although some of the food that appeared in the "Harry Potter" movies was made from painted resin, there were edible items in the mixfor the feast scene in "Goblet of Fire."

If you want to eat like a Hogwarts student, you can try some of the magical offerings at Universal Studios' Wizarding World of Harry Potter,from butterbeer to bangers and mash.

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