Fay (1 March 2011)
"Nando and Doves"

 
Gosh, Nando! Your post:- http://www.fivedoves.com/letters/feb2011/nando228-2.htm
 
It explains, beautifully, just what my clumsy calculations have been pointing me to - 21st April, 2011. I have to keep going over your post as I can't quite believe what I'm seeing.
 
YSIC
 
Fay