Throughout the Harry Potter books, there are some variations between the Bloomsbury (British) and Scholastic (American) editions. Below the first section on "Philosopher's vs. Sorcerer's" is a section on other different terminologies used.

Philosopher's vs. Sorcerer's

When Scholastic was publishing Harry Potter and the Philosopher's Stone in America, they decided to rename the book Harry Potter and the Sorcerer's Stone. They claimed that the American and British uses of the word philosopher were a bit different, so therefore sorcerer was a more appropriate word. Any true Harry Potter fan, American...

*DISCLAIMER* I did not come up with any of these, I found them all online and put them together...the links which i used are cited in the description. So let's not waste any more time and get started with the 50 Random Harry Potter Facts!!

1) Hermione's last name was going to be Puckle.
2) Hedwig was played by a male in the movies.
3) If a Muggle were to come across Hogwarts, all they would see was a sign that said, "Keep out, dangerous building."
4) Fred and George were born on April Fool's Day... That should explain their mischievous acts :)
5) Snape was partially based on a teacher JKR once had....

HOGWARTS STAFF
Headmaster Albus Dumbledore: His first name is from the Latin word alba, "white." His last name, according to Rowling interviews, is Old English for "bumblebee." In colour symbolism, white often stands for purity, so the headmaster's name suggests honour and a hard-working nature ("busy as a bee").
Professor Binns: A bin is a large storage container. A dustbin is British English for a garbage can. This boring professor could be described as a ghostly storage for information that many Hogwarts students view as rubbish.
Headmaster Armando Dippet: Armando is from the name Armand,...

If not little known, at least little remembered. ;) I've collected here eleven (in my opinion) of the most interesting and useful ones. Plus my comments on some of them.

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1. There is no such thing as a pureblood family. Every wizarding family has a muggle or a few among them. Some just choose to cross them over in their family tree and pretend they don't exist and instead claim themselves as purebloods.
-link

^I can see Blacks and Malfoys doing that. But makes me wonder why were the Crouches noted as purebloods then, as evidently the father and son were not passionate about purity of blood....

Harry Potter married Ginny Weasley. They had three children, James Sirius, Albus Severus, and Lily Luna. He became head of the Auror's Department under Kingsley Shacklebolt.

Ginny Weasley played quidditch for the Holyhead Harpies. After deciding to raise a family, she retired and became Senior Quidditch correspondent at the Daily Prophet.

Hermione Granger married to Ron Weasely and had two children, Rose and Hugo. Hermione went back to Hogwarts and sat her NEWTS before working for Department for the Regulation and Control of Magical Creatures and helping house elves. She then moved to the Department...

1. Ask him why he 'doesn't have such a cool scar?'
2. Laugh at him.
3. Wake him up by singing Beach Boys songs in his ear. 'Round, round, get around, I get around...'
4. Knit him things. Really hideous things.
5. Give him kangaroo-ears for a month.
6. Smile during Death-Eater meetings and say you taught him everything he knows.
7. Chew bubblegum all the time. Should he address you, your only response will be a series of huge bubbles in quick succession, the last of which will burst everywhere and make a mess.
8. Dance the Funky Chicken.
9. Ask him when was the last time he took a bath.
10....