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 Why is this link included in the article. 

 ==Birthdate== 
 An anon changed "May 26" to "May 20".  I've reverted because, in a quick online check, I found no site giving the May 20 date.  On the other hand, it seems that most or all of the sites saying May 26 are Wikipedia mirrors.  I know that Ward Cunningham himself has looked in on Wikipedia, so I'll go back to May 26, figuring that he probably looked at his own article and would've corrected an error.