Linus Torvalds released the first version of the Linux operating system kernel for free on the Internet.
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NASA unveiled its first space shuttle, the Space Shuttle Enterprise.
King Charles VI of France suddenly declared that no Jew may live under his rule, following complaints from Christians in France.
Norway became the first country in the world where electric cars outnumbered petrol cars.
Conjoined twins were successfully separated for the first time.
Inventor Phillip W Pratt obtained the patent for his sprinkler system designed to extinguish fires.