Work begins on Mount Rushmore, Sputnik is launched into space, the pope visits America for the first time, Janis Joplin is found dead of an overdose, all on this day.
2011: Apple Inc. announces the release of its much-anticipated iPhone 4S. The phone retained the exterior design of its predecessor, the iPhone 4, but added a voice recognition system known as Siri, a cloud storage service named iCloud and other improved hardware specifications and software updates.
National Nuclear Security Administration
iStock / MartiSaiz
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