In 1817 – The first public gas street light in the U.S. was lit in Baltimore, Maryland at the corner of Market and Lemon streets.
In 1915 – The first completely successful tests of the wireless telephone from a moving train were conducted on the Delaware, Lackawanna and Western Railroad when spoken messages were clearly heard twenty six miles from Lounsberry to Binghamton, NY.
In 1984 – The first untethered spacewalks were made by Challenger astronauts Bruce McCandless II and Robert L. Stewart
Like Tech History? Purchase Tom Merritt’s Chronology of Tech History at Merritt’s Books site.