HP trivia question

[rm]

Does anyone know the actual date Snape went to Dumbledore to, presumably, turn spy. I know we know "after Harry's parents died," but is there an actual date? I've just had a crackpot theory occur to me, and I need to know if cannon contradicts it, which I'm almost sure it doesn't.

Comments

[rm.livejournal.com]

Yeah, but was it that night or like a week later? Hrrrr. I have to think about this.