On November 13, 1990, one day after Tim Berners-Lee's and Robert Cailliau's publication of the concept of a world wide hypertext system [2], the first web page was published. Today, living without the World Wide Web, or simply the Web, has become almost impossible. Our daily live depends on news spread over the web and ecommerce hase become a convenient commodity. Nobody wants to live without it. Incredible, but only 20 years ago, most people lived in the stoneage compared to today's virtual online worlds.
On this day in 1877 Thomas A. Edison conceived the first idea for his phonograph, the very first mechanical tool for recording and reproducing (replaying) sound. The phonograph also was the invention that first gained him public notice.