The first scientific hand-held calculators (HP-35) hit the markets with a hefty price tag at $395.
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The first volume of the Oxford English Dictionary was published.
NBC-TV premiered ''Late Night with David Letterman."
The first reusable spacecraft called ''Space Shuttle Columbia" broke apart when returning to Earth, and all seven astronauts on board died.
MP's in the UK voted in favor of triggering the European Union Bill (Article 50), which gave the government the power to prepare to leave the European Union.
Mary Queen of Scots received the death sentence from cousin Queen Elizabeth I.
