20 years ago today, on April 30 1993, CERN contributed the technologies underpinning the World Wide Web to the royalty-free public domain. These simple technologies -- the humble URL, HTTP, and HTML -- were developed by Tim Berners-Lee at CERN in the early '90s, but it wasn't until they were open-sourced that the WWW actually became the web. If CERN had decided otherwise, much of what you consider to be the internet wouldn't exist, including Facebook, Steam, and the humble website that you're reading right now.