In 1902 – Joe Horn and Frank Hardart opened the first US Automat at 818 Chestnut St. in Philadelphia. The waiterless restaurant charged a nickel for most dishes.
In 1931 – Robert Goddard received a patent for rocket-fueled aircraft design (U.S. No. 1,809,271). Sadly we do not have a lot of rocket-planes in operation.
In 1986 – The Pittsburgh Supercomputer Center opened to support the National Science Foundation’s NSFNET, which linked five supercomputer centers. NSFNET would eventually allow commercial uses and transition to the open Internet.
Like Tech History? Purchase Tom Merritt’s Chronology of Tech History at Merritt’s Books site.