Most sane folks will have greeted the arrival of Internet Explorer 9 with a curious click on a download button or a simple update of the browser they were already using, but that's not enough for everyone. One chap with a taste for the eccentrically geeky decided to take this opportunity to go through a retrospective of every version of IE, going all the way back to Windows 95's first iteration, and to run the Acid compatibility tests to see how they stand up to modern standards. IE1, the ancient, CSS-deprived beast that it is, choked immediately and failed to even display its homepage without an error, but things improved steadily from there until the triumph of iteration 9. See all that glorious progress happening in the space of just a few minutes in the video after the break.