Uh, right. Don't know why you feel the need to regurgitate commonly known 11 year old facts, but alright.
A common thing that you made a mistake on. That's why you were corrected.
I think it was pretty obvious what I was referring to. There's a fine line between correcting a mistake and being needlessly picky. Makes it seem like you're "correcting" just to be an ass.
Learn to pick and choose your battles. This isn't one worth fighting.