well this is not an invention but it happend in 1981! in 1981 the Space Shuttle is the first reusable spaceship.
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The first laptop/portable computer was invented in 1981 by Adam Osborne.
IBM launched their first personal computer (model number 5150) on August 12, 1981.
Richard Lyon of Xerox and Steve Kirsh of Mouse Systems Cooperation in 1981 invented the first optical mouse. Douglas Engelbart was the first inventing a computer mouse with the name "The Locator X-Y"
When and where were snickerdoodles invented Why were snickerdoodles invented
Basketball was invented by James Naismith. He was a 'gym teacher'. One rainy day, he was tired of playing the same games over and over and decided to take a ball and throw it into a peach basket. This, he thought, is fun so he played it with his students, etc.,etc... (at least that's how i THINK it was. That's how I remmember it anyway.) Glad to help! ;)