nine and three quarters

[Hans]

No: HPFGUIDX 55250

Has anyone thought of the significance of the number nine and three 
quarters?

I have searched through all the ancillary books and the archive of 
this group, but can't find any explanation of the meaning of that 
number.

It's not just a number Dr Rowling has chosen randomly. Harry's 
parents were killed when he was exactly 1 and a quarter years old 
(July 31 1980 to Oct 31 1981 (Halloween)). Hagrid turned up with the 
invitation letter on Harry's 11th birthday. That makes 
Harry's "Muggle" period exactly 9 and 3 quarters years. It's a sort 
of gateway number - a gateway to the magical world. But why 9 and 3 
quarters? It's 117 months. That's 9 times 13. It's also 39 (=3x13)
divided by 4 years. Any ideas?

"Hans"