December 9, 1968 Douglas Engelbart did something what I believe was a huge leap into the future. He didn't just invent the mouse, but the whole experience and interactivity with a computer which was unheard.
Do that sort of things still happen today? Of course new things get invented and new ways to interact with media and a computer such as Leap Motion, Myo - Gesture control armband, Siri, and I'm sure there are tons of other examples out there. But they seem to be what in Engelbart's presentation was the mouse, just a part of the larger picture.