Perhaps more than anything else previously invented, this pretty black box changed the world of communications, entertainment, commerce, scientific research, and even war forever. In fact, the world as we know it today would have never existed without it.

It happened less than two decades ago, when Tim Berners-Lee released version 0.1 of his web server—CERN HTTPd. June 1991 was the month. A Next Cube workstation was the box. The heir of Hypercard was put online for the first time on August 6, 1991. It will continue to shape the world for decades to come. [Flickr—Thanks Rick]