Harry Potter Facts
Harry Potter Facts

84 Magical Facts about Harry Potter

By Karin Lehnardt, Senior Writer
Published June 9, 2017Updated July 31, 2019
  • A picture of Gandalf the Grey (from The Lord of the Rings) can be seen in the collection of great wizards in Professor Dumbledore’s study in Harry Potter and the Chamber of Secrets.[8]
  • Author J. K. Rowling  revealed that Dumbledore is gay and he had a crush on the wizard Grindelwald, whom he later defeated in a wizard duel.[1]
  • As every Potter fan knows, Dementors are deadly, magical, wraith-like creatures. Rowling revealed that they represent depression and that they were based on her own experience with the disease. The remedy to lighten the effects of a Dementor is chocolate.[6]
  • In 2007, Rowling was runner up for Time magazine’s Person of the Year.[15]
  • The actress who played Moaning Myrtle was actually 37 years old and is the oldest actress to portray a Hogwarts student.[12]
  • Rowling said that if she were to be a teacher at Hogwarts, she would teach Charms. If she had a job in the wizarding world, she would write spell books.[4]
  • Owls are the primary means of communication between wizards in Harry’s world. However, in many parts of the world, owls are considered bad luck and harbingers of death.[2]
    • Interesting Death Eater Fact
    The Death Eater movie masks were inspired by Mogul arabesque patterns
  • The death of Rowling’s mother from multiple sclerosis significantly influenced her writing, and death is a major theme throughout the Potter series.[18]
  • In Harry Potter and the Sorcerer’s Stone, dragon blood is revealed to be an effective oven cleaner.[12]
  • Rowling’s books were the first children’s books included on the New York Bestseller list since E.B. White’s Charlotte’s Web in 1952.[15]
  • When Harry Potter and the Prisoner of Azkaban was released in Great Britain, the publisher asked stores not to sell the book until schools were closed for the day to prevent truancy.[6]
  • Several publishers rejected the first Harry Potter manuscript saying it was too long and literary, but Bloomsbury Publisher finally accepted it in 1996. The book’s publisher suggested Rowling use the name “J. K.” rather than her real name “Joanne Rowling” to appeal to male readers. She took the “K” from her grandmother’s name Kathleen, but neither "Kathleen" nor "K" is part of her legal name.[4]
  • Rowling’s series has stimulated children to read and has concomitantly boosted the sales of other children’s literature, such as C.S. Lewis’ The Chronicles of Narnia series and Lloyd Alexander’s The Black Cauldron series.[15]
  • Colors play an important role in the Harry Potter novels. For example, shades of red represent goodness, such as Gryffindor’s scarlet robes, Harry’s red ink, and the crimson Hogwarts Express train. The Weasleys have red hair and a red roof. Green is largely associated with negative events, such as when Harry sees a flash of green when his parents die and the green-colored curse that made Ron vomit.[18]
  • The seven Harry Potter books have sold nearly 500 million copies since the publication of Harry Potter and the Philosopher’s Stone in 1997, making Harry Potter the bestselling book series of all time[13]
    • Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?

    - Professor Albus Dumbledore

  • Numbers are symbolic in the series, especially 2, 3, 4, and 7. For example, the trio of Harry, Ron, and Hermione suggest the power of three and the spiritual trinity. Harry fatally wounds the basilisk on its third strike, and Hagrid knocks on the front door of Hogwarts three times. Students attend Hogwarts for seven years and there are seven players on each Quidditch team. Sirius is also imprisoned on the seventh floor of Hogwarts.[18]
  • Rubeus Hagrid, one of Harry’s closest friends, is part wizard and part giant. Rubeus is Latin for something produced from a bramble or a thicket, which fits Rowling’s description of him as “wild.” Hagrid most likely comes from the term “haggard” which also means “wild” or “unruly.”[1]
  • Harry Potter’s name may refer to a “potter’s field,” which is a cemetery in which people of unknown identity or the very poor are buried. This would be fitting because Harry Potter serves as a type of “everyman,” a powerful mythological archetype.[1]
    • Weird Harry Potter Fact
    Harry Potter serves as a type of “everyman,” a powerful mythological archetype
  • Harry’s birthday is July 31, 1980. Rowling’s birthday is also July 31—but in 1966.[2]
  • Cedric Diggory is one of four students to die in Rowling’s novels. Cedric is a common Welsh name, and Diggory is the name of the professor in The Lion, the Witch, and the Wardrobe who traveled to Narnia where he picked an apple to save his mother. The seeds from the apple grew into a tree from which the wardrobe was made.[1]
  • Rowling said she may have inadvertently taken the name of Harry’s school, “Hogwarts,” from a hogwort plant she saw in the Kew Gardens in New York City.[2]
  • Voldemort’s wand is made of yew. Yew is seen by some as having immense supernatural power and being a symbol of death and rebirth, the same immortality that Voldemort seeks. Historically, nearly all wizards have used a magical wand of some sort that channels a wizard’s power and acts as a symbol of authority (such as a shepherd’s staff).[6]
    • Interesting Harry Potter History Fact
    Nicholas Culpeper inspired some of J.K. Rowling's mosting interesting terminology
  • Rowling discovered “witchy” sounding names such as toadflax, goutwort, grommel, and others in Culpeper’s Complete Herbal, a famous book of herbal lore from the 1600s.[14]
  • Golgomath (one of the largest giants in the Potter universe) may be a play on the word “googol,” a math term for a one with a hundred zeros after it—in other words, one of the largest numbers known.[1]
  • Rowling said that when she took an online Sorting Hat quiz, it sorted her into Hufflepuff, one of the four houses of Hogwarts.[4]
  • Rowling said if she could take Polyjuice Potion for an hour, she would become Prime Minister Tony Blair. She also said that she would be dreadful at playing Quidditch as she is “not sporty,” “not great with heights,” and is “clumsy.”[4]
  • Rowling said that she would like to transform herself into her favorite animal: an otter. That is the Animagus shape of Hermione’s Patronus—which is not surprising, since Rowling has said Hermione is a lot like she is.[2]
  • The curse used to kill Harry’s parents, “Avada Kedavra,” derives from a phrase in Aramaic Abhadda kedhabhra, which means to “disappear like this word.” It was used to make illness disappear, but there’s no proof it was meant to kill anyone. It is also likely the origin of abracadabra, which was used by doctors to cure fevers.[1]
  • Harry’s godfather’s name, Sirius Black, comes from the name of one of the brightest stars in the sky, the “Dog Star” or Sirius (from the Greek word seirios, meaning “burning”). The star is a symbol of the goddess Isis and was central to the religion and philosophy of Egypt.[1]
  • Sirius Black’s tattoos are borrowed from Russian prison gangs. The markings identify the person as someone to be feared and respected.[6]
  • Both Daniel Radcliffe and Rupert Grint admitted that they had a crush on Emma Watson in earlier films.[3]
    • Crazy Harry Potter Fact
    Both Radcliffe and Grint admitted having a crush on Watson in early films
  • Albus Wulfric Percival Brian Dumbledore is Dumbledore’s full name. Dumbledore is an Old English word meaning “bumblebee.” Albus is Latin for “white,” and Wulfric was the name of a twelfth-century saint who became a deeply holy man after seeing a homeless man in the street. Percival was a knight of King Arthur’s Round Table and may also mean “pierce the veil,” suggesting an ability to return from the dead. Brian is a Celtic name, meaning “strong.”[1]
  • Harry Potter and the Philosopher’s Stone refers to a mythical object called a “philosopher’s stone.” In the ancient practice of alchemy (from the Arabic word al-kimia, or the transformation of metals, and related to the word algebra), alchemists searched for a magical substance called the “philosopher’s stone” that would turn ordinary metals into gold. In Harry Potter and the Philosopher’s Stone, the “philosopher’s stone” is described as “blood-red.”[6]
  • The Death Eaters were originally known as the Knights of Walpurgis, which is a reversal of “Walpurgis Night,” the name of an old witch’s holiday on April 30th celebrating springtime—exactly six months from Halloween. One holiday ushered in the growing season; one marked its passing. On both nights, demons and witches were free to roam. Saint Walpuriga was actually the name of a nun who lived between A.D. 710-779.[6]
  • Hogwarts wizards use cauldrons (from the Latin calere meaning “to be warm” or hot, and which is related to “calorie”) to create potions. Mundungus (from archaic Spanish for “stinky tobacco”) Fletcher was known to peddle stolen pots. Cauldrons are one of the oldest and most widely known symbols of magic—older, for example, than broomsticks. In fact, people once believed that witches flew in cauldrons.[1]
  • Quidditch is also known as Ikarosfairke or “Ikarus ball,” which refers to the Greek myth of Icarus who flew too close to the sun. His wings melted and he fell into the sea and drowned.[6]
    • Interesting Quidditch Fact
    The Lament for Icarus by H. J. Draper
  • The original title of the first book was Harry Potter and the Philosopher’s Stone and appeared on books in the United Kingdom, Canada, Australia, and other territories. It was changed to Harry Potter and the Sorcerer’s Stone by the American publisher because “Sorcerer’s” seemed more exciting. Rowling later said she would have fought this decision had she been in a better position.[2]
  • “Morsmorde” is the command that makes the Dark Mark (the mark of Voldemort) appear and means “take a bite out of death” in French, making it an appropriate call for Death Eaters.[1]
  • J.K Rowling admits that she regrets pairing Hermione with Ron. She predicted that the couple would need relationship counseling.[7]
  • Hermione's Patronus is an otter. Ron Weasley's Patronus is a Jack Russell Terrier, which is known for chasing otters.[1]
  • Tom Felton, who played Draco Malfoy, originally auditioned for the roles of Ron and Harry.[17]
  • J.K. Rowling said she is disturbed that so many young girls swear "undying devotion" to the villainous Draco Malfoy. [17]
  • To prevent Harry Potter and the Deathly Hollows from being leaked, it was given codenames, such as Edinburgh Potmakers and The Life and Times of Clara Rose Lovett: An Epic Novel Covering Many Generations.[16]
  • The director of The Prisoner of Azkaban asked Emma Watson, Daniel Radcliffe, and Rupert Grint to write essays from the point of view of the characters. Watson wrote a 10-page essay, Radcliffe wrote one page, and Grint didn't turn anything in at all.[16]
    • Fun Facts about Harry Potter
    Platform nine and three-quarters is the train platform from which students board the Hogwarts Express (iStock Editorial / Getty Images Plus)
  • So many fans visit King’s Cross station to take pictures of platforms 9 and 10 that the station management erected a sign that says “Platform 9 ¾” which, in the Potter books, is invisible to Muggles but acts as a gateway for witches and wizards.[4]
  • Daniel Radcliffe went through 160 pairs of Harry Potter's round-framed glasses during the course of the films.[3][16]
  • The divination textbook used at Hogwarts was written by “Cassandra Vablatsky.” Her last name refers to a real woman, Helena Petrovna Blavatsky who founded the Theosophical Society. Cassandra was the daughter of the rulers of Troy (Priam and Hecuba) who was cursed by Apollo to prophecy the truth but never to be believed.[6]
  • The Hogwarts school motto is Draco dormiens nunquam titillandus which is Latin for “Never Tickle a Sleeping Dragon.”[2]
  • In the novels, Hogwarts is located somewhere in Scotland and has various charms to make it appear as an old ruin to muggle eyes.[2]
  • Hogwarts was founded 1,000 years ago by Godric Gryffindor (fire/lion), Salazar Slytherin (water/serpent), Helga Hufflepuff (earth/badger), and Rowena Ravenclaw (air/raven). Its crest includes each of the animal representations of the four founders.[4]
  • In the Hogwarts school, grades include Outstanding, Exceeds Expectations, and Acceptable. The failing grades include Poor, Dreadful, and Troll.[6]
  • Early in the series’ history, the Harry Potter books received positive reviews; however, later books were criticized as bland and cliché.[15]
  • When Coca-Cola won the rights to tie in its product with Harry Potter and the Sorcerer’s Stone, Rowling insisted the company donate $18 million to the U.S. Reading Is Fundamental campaign to encourage children to read.[5]
  • Rowling says the idea of Harry Potter just “strolled into her head” during a four-hour train delay.[4]
    • Interesting J.K. Rowling Fact
    The original Harry Potter manuscript was rejected by 12 publishing houses before Bloomsbury picked it up
  • Rowling is the first person to become a billionaire (U.S. dollars) by writing books.[15]
  • According to Rowling, her favorite book as a child was The Little White Horse by Elizabeth Goudge.[4]
  • An outbreak of lice among the children cast members occurred while filming Harry Potter and the Chamber of Secrets.[8]
  • Natalie McDonald, who appeared in Harry Potter and Goblet of Fire, was based on a real girl Rowling knew who was dying of leukemia.[1]
  • The driver and conductor of the Knight Bus, Ernie and Stanley, are named after Rowling’s grandfathers.[1]
  • In 2003, members of the Jesus Non-Denominational Church in Greenville, Michigan, publicly demonstrated their concern over what they perceived to be evil in the Harry Potter books by gathering around a bonfire and burning Rowling’s books. In the Middle Ages, when books were rare, burning them was a radical statement.[15]
  • Rowling claims that her wizarding world is purely imaginary and she doesn’t believe in the kind of magic found in her books.[15]
  • Harry Potter books made the American Library Association (ALA) list of 100 Most Frequently Challenged Books for five consecutive years. A challenge is a formal, written complaint filed with a library or school requesting that materials be removed because of content or appropriateness.[15]
  • Nancy Stouffer, the author of The Legend of Rah and The Muggles and Harry Potter and His Best Friend Lilly sued Rowling because she said Rowling’s books were based on her ideas. Stouffer lost her case in 2002 and was fined for making her claim with forged documents. No other author has claimed that Rowling stole an idea.[15]
    • Interesting Phoenix Fact
    The "Order of the Phoenix" is a secret organisation led by Albus Dumbledore, who is dedicated to fighting Lord Voldemort and his followers, the Death Eaters
  • Rowling said her favorite beast in the series is the phoenix, a mythical sacred bird who ignites into flames when it reaches 500 or 1,000 years old only to emerge from the flames as a new and young phoenix.[4]
  • When the casting team for the Harry Potter movies scouted Emma Watson's school, she initially did not want to audition of the role of Hermione. Her teacher encouraged her to try, and she was the last girl that day at her school to audition.[12]
  • J.K. Rowling handpicked Alan Rickman to play Snape.[12]
  • Child actors would do their real homework in the Harry Potter movies in an effort to make the school setting more real.[12]
  • The word "muggle" existed in the early to mid-1900s as a word for to describe pot smokers.[12]
  • Both Rosie O'Donnell and Robin Williams both offered to be in the Harry Potter film without pay. However, Rowling declined because she wanted a strictly British/Irish cast.[12]
  • Daniel Radcliffe broke about 80 wands during the filming of the Harry Potter movies because he would use them as drumsticks.[9]
  • It would take a person approximately 18 hours and 20 minutes to watch all 8 Harry Potter movies in one sitting.[9]
    • Interesting Hedwig Fact
    Seven different owls played Hedwig; their names are Gizmo, Kasper, Oops, Swoops, Oh Oh, Elmo and Bandit
  • Harry Potter’s pet snowy owl, Hedwig, shares her name with two famous saints. One is Saint Hedwig of Andechs (1174-1243), a former duchess noted for her benevolence and compassionate nature. The other is Saint Hedwig, Queen of Poland (1373-1399). The death of Hedwig in Harry Potter and the Deathly Hallows represents Harry’s loss of innocence and coming of age.[2]
  • In one of the initial takes of Hermione's "Cinderella" moment, Emma Watson actually tripped and fell down the stairs in her fancy dress.[10]
  • To deter pirating, the Goblet of Fire film reels were code named "Happy Days."[10]
  • Daniel Radcliffe went through 160 pairs of glasses by the time the last Harry Potter movie was completed.[9]
  • Robert Knox, who played Marcus Belby, was stabbed to death on May 24, 2008, just a few days after filming ended.[11]
  • Dame Maggie Smith filmed Harry Potter and the Half Blood Prince while undergoing radiotherapy for breast cancer. [11]
  • The shortest Harry Potter film is Harry Potter and the Deathly Hallows: Part 2 (2011) at 2 hours and 10 minutes.[9]
  • All the food in the dining hall in the Sorcerer's Stone was real.[12]
  • Harry Potter and the Order of the Phoenix sold 5 million copies in the first 24 hours it went on sale in 2003. Half-Blood Prince sold a record-breaking 11 million copies on the first day of its release in 2005. And Harry Potter and the Deathly Hallows sold over 15 million copies worldwide.[13]
  • The Harry Potter books have been translated into more than 70 languages, which makes them one of the most translated books in history![13]
    • Interesting Voldemort Fact
    Voldemort is the archenemy of Harry Potter
  • The name Voldemort comes from the French words meaning “fly from death,” and his entire goal is to conquer death. In the second Harry Potter novel, Rowling shows us that “I am Lord Voldemort” is an anagram of “Tom Marvolo Riddle,” which is his actual full name.[1]
  • Goblet of Fire was initially going to be titled “Harry Potter and the Doomspell Tournament."[13]
  • The publishers of Harry Potter and the Deathly Hallows spent millions of dollars on security to prevent plot details from leaking. Bookstores were legally forbidden to open boxes that held the books until midnight. Despite the security, there were several leaks, including photos of every single page appearing on illegal file sharing sites.[13]
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