History at Hogwarts and the Founding Four

[nifer819]

No: HPFGUIDX 126068



Is there any evidence to indicate how old Professor Binns is?  We 
know from Nearly Headless Nick's deathday party in CS that he died 
500 years ago.  Is it possible that Professor Binns is as old if not 
older than Nick?  Could it be that the sorting hat is not the only 
one with first hand, err... first hat, knowledge of what happened at 
Hogwarts at the time of the Founding Four's split?