- Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw, and Salazar Slytherin have the same letters for their first and last name.
- Rowling came up with the idea of the four founders on an airplane. She wrote it on the sick bag.
- Godric Gryffindor is the only founder who hasn’t had an heir.
- Helga Hufflepuff brought the house elves to Hogwarts.
- Helga Hufflepuff had a gift of food relating to charms.
- Rowena Ravenclaw had a dream about a warty hog that led her to the cliff by the great lake. She named the schools with the warty hog but backward, HOGWARTS.
- Rowena Ravenclaw designed Hogwarts. She had the idea of constantly changing stairs.
- Rowena Ravenclaw was the first who passed away.
- Salazar Slytherin’s descendants created the magic school at ILvermorny.
- Salazar Slytherin’s heir buried his wand, it sprouted at ILvermorny.
- Salazar Slytherin created his wand using Basilisk’s horn.
- Rowling once considered instead using a sorting hat, she wanted the four founders’ statues to come alive and pick their students.
- The word Slytherin contains the word “Sly”, which means clever in a bad way. Or it can be explained as “slithering”, the movement of snakes.
- The word Gryffindor contains the word “Gryffin”, which is a magical creature with a lion’s body and a hawk’s head.
- There is a situation called “hat stall”, which means the sorting hat decided for five minutes (or even longer) which houses the student belongs to. Peter Pettigrew and Professor McGongall are hatstalls. Some others are considered for more than one house, such as Harry Potter (G or S), Hermione Granger (G or R), Neville Longbottom (G or H), Gilderoy Lockhart (R or S), and Filius Flitwick (R or G).
- The Hogwarts motto is “Draco dormiens nunquam titillandus.” Translated into English, it’s “Never tickle a sleeping dragon.”
- Salazar Slytherin: Salazar came from a Portuguese dictator, Antonio Salazar. Slytherin sounds like “slithering”, which is how snakes get around.
- Godric Gryffindor: Godric is a derivative of the old English name “Godrich”, which means “good person”.Gryffin is a mythical character. Dor, in French means golden.
