The first scientific hand-held calculators (HP-35) hit the markets with a hefty price tag at $395.
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Mary Queen of Scots received the death sentence from cousin Queen Elizabeth I.
Thomas Edison completed the world's first movie studio in West Orange, New Jersey.
Joe Biden and his wife, Jill, founded the 'Biden Foundation.'
The first reusable spacecraft called ''Space Shuttle Columbia" broke apart when returning to Earth, and all seven astronauts on board died.
NBC-TV premiered ''Late Night with David Letterman."