Theodore Roosevelt became the US president after former president William McKinley died from gunshot wounds.
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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.
Boston Light was illuminated for the first time.
The Vought-Sikorsky VS-300 became the first successful helicopter to fly.
Pope Paul VI canonized Elizabeth Anne Seton as the first American saint.
Singer Selena Gomez shared on Instagram that she had a kidney transplant due to her struggle with lupus.
