Ward Cunningham, American computer programmer, developed the first wiki

Howard G. Cunningham is an American computer programmer who developed the first wiki and was a co-author of the Manifesto for Agile Software Development. Called a pioneer, and innovator, he also helped create both software design patterns and extreme programming. He began coding the WikiWikiWeb in 1994, and installed it on c2.com on March 25, 1995, as an add-on to the Portland Pattern Repository. He co-authored a book about wikis, entitled The Wiki Way, and invented the Framework for Integrated Test.

A wiki is a form of hypertext publication on the internet which is collaboratively edited and managed by its audience directly through a web browser. A typical wiki contains multiple pages that can either be edited by the public or limited to use within an organization for maintaining its internal knowledge base. Its name derives from the first user-editable website called "WikiWikiWeb", with "wiki" being a Hawaiian word meaning "quick".