Curiosities of the Saga

JK Rowling wrote the last chapter of Harry Potter in 1990, seven years before releasing the first book.
In London, at the “King's Cross” train station, a replica was created in honor of platform 9 3/4, with a cart with suitcases and a cage crossing the wall.
JK Rowling confirmed that Albus Dumbledore (Hogwarts director) is homosexual and that he had fallen in love with Grindelwald, a dark wizard that Dumbledore himself defeated in 1945.
Fred and George Weasley (twin brothers and Ron Weasley brothers) celebrate their birthday on April Fool's Day (April 1).
Michael Jackson tried to make a musical inspired by the adventures of Harry Potter, but the writer refused the proposal.

JK Rowling said that if Voldemort (sorcerer of darkness and villain of the saga) saw a Boggart (a mystical creature who turns into his greatest fear) he would see his corpse, since death is what he feared most.

Expecto Patronum (a spell that protects people from dementor creatures that suck the soul and protect Azkaban's prison) means "I wish for a guardian" in Latin.
Contrary to popular belief, the "T" at the end of Voldemort is muted in pronunciation. This name comes from French words that mean "Flight of death".
JK based the character of Hermione (a witch daughter of muggles and best friend of Harry Potter), at age 11, on herself at the same age. She even made her Patronus an otter, which is her favorite animal.
Sirius Black's tattoos (a fugitive from Azkaban prison and godfather to Harry Potter) were inspired by the tattoos that gang members use in a Russian prison, these tattoos identify that the person who has them should be feared and respected.
People didn't know how to pronounce Hermione's name correctly, so the writer had the idea that in the film "Harry Potter and the Goblet of Fire" Hermione would explain to Viktor Krum (seeker of the German quidditch team, considered the best seeker in the world and student at the Durmstrang Institute ) how to say your name correctly so that fans know how to pronounce it.
40 versions of the Salazar Slithering medallion (creator of the Slithering house at Hogwarts school and one of the school's four creators) were created to compensate for Harry and Ron's failed attempts to destroy him during filming.

Harry Potter and Ronald Weasley officially never graduated from Hogwarts

When they died Dumbledore was 115 years old and Voldemort was 71 years old.

As explained in the film, sorcerers only enter school when they are 11 years old, so until they reach that age, sorcerers study at home.
The character Severos Snape (potions teacher at Hogwarts) is inspired by JK's chemistry teacher.

When Arthur Weasley (Ron Weasley's father) uses a telephone booth to access the ministry of magic the code he uses is 62442 which on a numeric keypad writes magic (magic in English).
The names that Harry Potter and Ginny Weasley (Ron Weasley's sister and later Harry Potter's wife) gave to their 3 children were a tribute to some people close to them: Lily Luna Potter in honor of Lily Potter (Harry Potter's mother) and Luna Lovegood (Harry Potter classmate at Hogwarts); James Sirius Potter in honor of James Potter (Harry Potter's father) and Sirius Black and Albus Severus Potter in honor of Albus Dumbledore and Severus Snap.
The logo of Hogwarts (school of witchcraft where Harry Potter studied) says Draco Dormiens Nunquam Titillandus which is Latin and means «never tickle a sleeping dragon»
The name of Salazar Slithering was inspired by Antonio Salazar because the writer lived many years in Portugal and how cruel Salazar was to Portugal JK decided to put that name on the most cruel founders of Hogwarts.
The staircase of the Lello library (a library located in the city of Porto) was the inspiration for the famous staircase at the Hogwarts school.
The uniforms that students at Hogwarts school wear are inspired by the uniforms of Portuguese university students.
After Fred Weasley's death his twin brother George never managed to conjure up a Patronus.
JK originally was going to kill Arthur Weasley but instead decided to kill Sirius Black.
Dumbledore created a method of communication between Patrons that only he and the members of the order of the phoenix know how to use and that is how the members of that order communicate
No matter how powerful a wizard is, he could never bring anyone back to life.
The animal of an animagus (animagus is a sorcerer who can transform into an animal whenever he wants and without any problem) is the representation of the sorcerer's personality.
In the first book, when Ron and Harry save Hermione from the Troll, in the bathroom, and become friends, it is the day that Harry's parents died, ten years earlier.
If we change the order of the letters of the name Remus Lupine (werewolf, professor of defense against black magic at Hogwarts and best friend of Sirius Black and James Potter), we can write “primus lune” that can be translated as “first moon”
The Patronus of Nymphadora Tonks (member of the phoenix order and Lupine's wife) was a rabbit, but after falling in love with Lupine, he became a wolf.
Harry Potter first arrived at his uncles' house on Hagrid's motorcycle (guard at Hogwarts fields). When he left it for the last time, it was on the same bike.
The bike Hagrid used to take Harry to his uncles' house was offered by Sirius Black.
After the end of the saga, George Weasley will have had a son, whom he named Fred in honor of his dead brother.
When Dumbledore sees a Boggart, the creature becomes his dead sister, Ariana.
Albus Wulfric Percival Brian Dumbledore is the full name of Dumbledore
The last book in the saga sold 11 million copies on launch day (world record)
Rowling said she would never again write a book in which Harry Potter was the main character.
«The Marauder's Map» was created by Moony, Wormtail, Padfoot and Prongs.
«The Marauder's Map» shows Hogwarts and the Digon Alley alley and the people who are walking in it always, the map shows every movement and never lies.
To be able to see the secrets of «The Marauder's Map» it is necessary to say the following sentence: «I solemnly sweae that i am up to no good» if you don't say it the map does not reveal anything and hints a blank scroll to, after seeing the secrets of the map so that it becomes an empty scroll again, it must be said: «Mischief Managed»
Whoever tries to see the secrets of «The Marauder's Map» without saying the sentence to start the magic cannot see anything except the creators of the map to enjoy with that sorcerer, and while a sorcerer uses the map even saying the sentence to start the magic is able to see conversations between the creators of the map.
The real names of the creators of «The Marauder's Map» are: Moony- Remus Lupine; Wormtail- Peter Pettigrew (he was once part of James Potter's group of friends but later became a traitor to that friendship, thus causing the death of James Potter and is also a faithful follower of Lord Voldemort); Padfoot- Sirius Black and Prongs- James Potter.

Tom Marvolo Riddle is the original name of Lord Voldemort.
If we put the name Tom Marvolo Riddle in a certain way, give us the following sentence: "I am lord Voldemort" (Tom Marvolo Riddle = "I am lord Voldemort")
In the world of magic there is a spell that allows to divide the soul in two and so for the person to die it is definitely necessary to kill the two parts of the soul that feitiso is called horcrux but to divide the soul it is necessary to kill someone as voldemort's greatest fear was to die he made 7 horcrux being one of them accidental.
The 7 horcrux are:
Tom Riddle's diary
The Gaunt Ring
Salazar Slithering's necklace
The cup of Helga Hufflepuff (one of the creators of Hogwarts school and creator of the Hufflepuff house)