The Vought-Sikorsky VS-300 became the first successful helicopter to fly.
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14-year-old Ahmed Mohamed was arrested at school after bringing in a homemade clock, which was mistaken for a bomb.
Mary Ann Fischer gave birth to quintuplets, who became the first US quintuplets to survive past infancy.
The IBM 305 RAMAC commercial computer was announced to the public.
Britain skipped 11 days of the Calendar from September 3 to September 13, with the adoption of the Gregorian calendar starting on this day.
Theodore Roosevelt became the US president after former president William McKinley died from gunshot wounds.
