In Philosopher’s Stone, when Hagrid introduces Quirrell, he says:     “…He was fine while he was studyin’ outta books but then took a   year off ter get some first-hand experience…”   If Quirrell took a year off, this means that he was at Hogwarts more than a year ago. Voldemort cursed the DADA post when Dumbledore denied him as a teacher, so that nobody could stay in the position for more than a year.  So who was the DADA teacher in the year that Quirrell was gone?
It's well seen throughout the series that there is a “curse” on the DADA teacher position, that no one can hold that post for more than a year. But it seems like Quirrell has been around for longer than a year. What's up with that?
It's well seen throughout the series that there is a “curse” on the DADA teacher position, that no one can hold that post for more than a year. But it seems like Quirrell has been around for longer than a year. What's up with that?