The terrific design podcast, 99% INVISIBLE, recently discussed, what is claimed to be, the first objects designed by humankind - The Genesis Object. The discussion includes insights from William Lidwell, who I worked with as a contributor on the book Deconstructing Product Design. Lidwell suggests that the first designed object might have been a hand tool, a thrown weapon, or possibly just a "sexy" design object to show-off. See my original post on this story at Intuitive Company's We See blog.