“The interesting question is how you separate interaction design history from the broader scope of computing history in general. User experience people gravitate toward the history of hypertext and the graphical user interface, direct manipulation and the mouse, the work done at Xerox PARC and Apple. In many people’s minds, that era marks the dividing line between the ‘us’ of the design community and the ‘them’ of computer scientists, because it’s the point at which it became possible to draw a separation between the work that was done to serve the needs of the machine, and the work that was done solely to meet the needs of the user.” (Karen McGrane)