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Idlewild opened with six runways and a seventh under construction; [34] runways 1L and 7L were held in reserve and never came into use as runways. Runway 31R (originally 8,000 ft or 2,438 m) is still in use; runway 31L (originally 9,500 ft or 2,896 m) opened soon after the rest of the airport and is still in use; runway 1R closed in 1957 and ...
The PLATO system was launched in 1960 at the University of Illinois and subsequently commercially marketed by Control Data Corporation.It offered early forms of social media features with innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowdsourced online newspaper, and blog ...