1. 

   FriscoCharlie Administrator Staff Member Administrator Frisco.org Supporter

   Tom,
   
   Here's a Wikipedia Article. I haven't read the whole thing yet myself due to time constraints at the moment.
   
   Charlie

    

   FriscoCharlie, Feb 14, 2013

   #21
2. 

   TAG1014 (Tom Galbraith RIP 7/15/2020) Passed Away July 15, 2020 Frisco.org Supporter

   Wiki answer pretty much in a nutshell.
   
   TG

    

   TAG1014 (Tom Galbraith RIP 7/15/2020), Feb 14, 2013

   #22

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