Robert Cailliau Belgian (1947-). Co-worker of WWW inventor Tim Berners-Lee at CERN, Switzerland. Information engineer and computer scientist switched from working on CERN’s Large Hadron to lead organization’s Office Computing Systems in Data Handling division. In 1989, Berners-Lee proposed hypertext system to give CERN researchers access to all of CERN’s documents, in all forms. Berners-Lee created the system – World Wide Web – in Autumn 1990. Cailliau co-authored the WWW funding proposal, and later co- developed first web browser for the Mac OS, MacWWW.