DEVON-L ArchivesArchiver > DEVON > 2005-05 > 1115408701
From: "Jean Williams" <>
Subject: RE: [DEV] common ancesters
Date: Fri, 6 May 2005 20:45:01 +0100
Hi ya cousin <big grin>
From: bruce lawton [mailto:]
Sent: 06 May 2005 19:46
Subject: [DEV] common ancesters
> Hi List
> I did some math the other day and figured out something interesting.
> Check out this idea:
> Every generation is roughly 20 years, and every time you go back one more
> is a factor of two. 4 grandparents, 8 great grandparents, 16
> etc... So, 30 generations back is about 1066. 2 to the 30th power is
> a billion. There weren't a billion people on the planet in 1066, and
> were a couple million English people. That means that I am probably
> to every single person alive in England in 1066 and currently alive today
> several times over in a dozen different ways.
> Whatcha think about that?
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|RE: [DEV] common ancesters by "Jean Williams" <>|