The first ever wiki site was founded in 1994 as an automated supplement to the Wiki:PortlandPatternRepository. The site was immediately popular within the pattern community, largely due to the newness of the internet and a good slate of Wiki:InvitedAuthors. The site was, and remains, dedicated to Wiki:PeopleProjectsAndPatterns.
Wiki:WardCunnigham created the site and the WikiWikiWeb machinery that operates it. He chose wiki-wiki as an alliterative substitute for quick and thereby avoided naming this stuff quick-web. An early page, Wiki:WikiWikiHyperCard, traces wiki ideas back to a Wiki:HyperCard stack he wrote in the late 80's.
See also one of these links:
http://www.c2.com/cgi/wiki or Wiki:FrontPage
get some answers on the Wiki:WikiWikiWebFaq
get to know more about the Wiki:WikiHistory