birthday co incidence

I have just heard reference to your research on Radio 4 where you commented that siblings sharing the same birthday years apart is a relative rarity. My brother Simon and I share the same date, I was born on 17th April 1947 and he was born 10 years later on 17th April 1957. For years I joked that he was my twin, with a 10 year gap. Penny
Total votes: 591
Date submitted:Sat, 14 Jan 2012 08:40:59 +0000Coincidence ID:3500