1941 – British cryptologists including Alan Turing broke the code used by the German army to direct ground-to-air operations on the eastern front.
1971 – Marc Andreessen was born in Cedar Falls, Iowa. He would grow up to develop the Netscape browser, which powered the explosion of the Web in the late 1990s.
1979 – Voyager 2 made its closest approach to Jupiter, coming within 570,000 kilometers of the planet.
1982 – Disney released the movie Tron, which used the most extensive computer-generated graphics and special effects to that time.
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