The terms “hypertext”, “hypermedia” and “virtuality” were coined by Ted Nelson in the 1960s. This was way before the invention of the World Wide Web by Sir Tim Berners-Lee. Nelson, one of the great futurists of the last century, had written about the idea of a global network of computers in his books. He called his network Xanadu.
Incidentally, in the reference list of original proposal for the World Wide Web, Tim Berners-Lee had put Ted Nelson’s work at the top place.
