Same Birthday

As of the 23rd May 2022 this website is archived and will receive no further updates.

was produced by the Winton programme for the public understanding of risk based in the Statistical Laboratory in the University of Cambridge. The aim was to help improve the way that uncertainty and risk are discussed in society, and show how probability and statistics can be both useful and entertaining.

Many of the animations were produced using Flash and will no longer work.

We have three generations but four people with the same birthday in my family. My mother: Winifred Smith (nee Jennings (born Hereford, Herefordshire) 7th August 1933 Myself: Paul Andrew John Smith (born Hereford, Herefordshire) 7th August 1955 My eldest daughter: Natasha Alison Dawn Smith (born Truro, Cornwall) 7th August 1986 My son: Simon Ian John Smith (born Truro, Cornwall) 7th August 1987 I also got married (now divorced) on 7th August 1984 Neither myself, or my two children were planned! My daughter was born late and my son early and all of us were natural births!
Total votes: 385
Date submitted:Sat, 14 Jan 2012 09:22:48 +0000Coincidence ID:3675