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First Pocket Calculator
Nowadays we can find calculators on our wristwatches, computers and smartphones. But in 1972 the pocket calculator contained the very latest in portable technology.
Edison's Light Bulb
Thomas Edison’s most famous innovation created light that’s used in everyday life. Edison
John Dillinger Killed
Notorious gangster John Dillinger was killed outside a Chicago movie theatre on July 22, 1934.
Killer Smog in Donora, Pennsylvania
A small milling town in Pennsylvania was submerged in killer smog in October 1948. Donora, Pennsylvania,
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