King Carlos I of Portugal and his heir were assassinated in Lisbon.
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Myanmar's leader Aung San Suu Kyi was removed from power by a military coup d'état.
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."
The first volume of the Oxford English Dictionary was published.
The first scientific hand-held calculators (HP-35) hit the markets with a hefty price tag at $395.
