And that man's name was Leeroy Jenkins.

On May 11, 2005, a video was uploaded to the site, entitled "Leeroy!!" It told the tale of a group of adventurers preparing for one of their toughest battles yet, and a man who was off getting chicken and didn't listen to any of their careful plans. It's not the most obvious viral hit—World of Warcraft already had millions of subscribers in 2005, but it was still surprising to see the tale of Leeroy's epic case of ADHD cross over into mainstream success, and all without YouTube. Even though YouTube had just been invented, not many people were using it yet, and viral videos still originated from a host of random sites like this.