This mainstay in the creative world for celebrates 25 years. This application originally designed for the Mac platform only. Adobe has a 25 second video showing some great points along this very influential software career. You can catch it here: https://www.youtube.com/watch?v=QmYc1MNJaQc
Adobe has also slated and number of events including an interview with Thomas Knoll, one of the softwares creators.