Port from wikipedia
Roughly 90% of this content and the structure and outline are mine, part of a massive cleanup effort of an awful original wikipedia page. I left several sections (the ones that I planned to delete anyway) behind.
Still a work in progress. Jacob Jensen 22:04, 1 April 2007 (CDT)
- substantially modified and taken live. Jacob Jensen 00:17, 3 April 2007 (CDT)
Image I found tucked away which might be useful for this article. John Stephenson 05:39, 9 October 2009 (UTC)