🚀 go-pugleaf

McGill wrote:
> 
> The four coloured - map problem was solved in 1976 at the University of
> Illinois. It was as follows: any map can be coloured with only four colours
> and no country or state sharing a boundry will have the same colour.
>         Who proposed this problem?

Francis Guthrie, whose brother communicated it to Augustus De Morgan
in October, 1852.  The first published reference to the problem
was a query by Cayley in 1878, asking whether it had been solved.

This from _The Four-Color Problem_, by Saaty and Kainen (McGraw-Hill,
1977).

NOTE: Try to keep this out of sight of Archie Pu or we'll be subjected
to another thread about it.  You think the meower battles are tedious?
Just wait.


Regards,

Rick

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Rick Decker                   rdecker@hamilton.edu
Department of Comp. Sci.      315-859-4785
Hamilton College
Clinton, NY  13323            =  !=  ==  (!)
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