If you didn’t read the books:
You wouldn’t know who Peeves was.
You wouldn’t know how the Weasley Twins made WWW coming from a poor family.
You wouldn’t know about Dumbledore and Grindelwald.
You wouldn’t know much about the Marauders.
You wouldn’t know about Voldemort’s past.
You…
Okay, I can appreciate a list like this, but a couple of them you’re kind of reaching, and your style belies a contempt...