Yes or no and then tell us what exactly you told your boss or if you work somewhere where all you did was request it off on a calender of some sort.
Finally, tell us if you got it off, if you still have to work, or if it's still pending.
Me personally? I called my boss this evening and said "I was wondering if you could get one of the other guys to cover for me next Tuesday, I have an important, once in a lifetime family event going on that day". Which isn't entirely a lie because me AND my parents will all be playing that afternoon/evening.
Anyhow, he told me to text him tomorrow so he would ask a couple others if they could cover for me, so it's still pending.
I'll post here again tomorrow with the outcome! :P
Update: I totally got the 15th off! :D