July 16 and RAB (was Re: False Identity? RAB)

[nifer819]

No: HPFGUIDX 135105

Jen Reese :
  For starters, we have the interview with JKR:
    JKR: Today, just today, July the 16th, I was really hoping someone
    would ask me about R.A.B., and you did it. Just today, because I
    think that is — well, I hoped that people would.
 
Janeway:
 What this really made me wonder is whether the date had some 
 significance. Was she just being a little goofy, or is there
 something relevant about July 16 in relation to R.A.B.? I don't know 
 my HP timeline well enough to know what might have happened on this 
 date... anyone else have any ideas about what this might be?
 

nifer819:
     Is it possible that JKR has slipped us a clue somewhere other than 
the book?  Her website perhaps?  What was on her desk calendar that 
day?  Was it the birthday of a character with the initials R.A.B.?