Twenty years ago today, Tim Berners-Lee posted a short summary about the new World Wide Web project on the public alt.hypertext newsgroup. A copy of the first Web page mentioned in his post is hosted by the W3C.

The Web is arguably the most significant computing technology that has been developed in the forty years, although was enabled by other key developments, including the Internet and the “personal” computer. The impact of Sir Tim Berners-Lee’s simple idea and the principles behind it continues to grow as we discover new ways to apply it.

You can read more about the history of the Web in several Wikipedia articles, on the World Wide Web Consortium Web history page, and at CERN.