1973 Invention PLATO Notes is created by 17-year-old student Dave Woolley at the Computer-based Education Research Laboratory at the University of Illinois, as a conferencing and bulletin board forum system for communicating with the user community. In 1976, Notes expanded to enable any user to create a "notesfile" on any subject. PLATO Notes would serve as the inspiration for Lotus Notes developed by former PLATO users Ray Ozzie, Len Kawell, and Tim Halvorsen. (9h 38min, jan 10, 1973 y – 13h 58min, mar 20, 1973 y)
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9h 38min, jan 10, 1973 y
13h 58min, mar 20, 1973 y
~ 2 months and 9 days