Englishman William Penn founded Philadelphia, Pennsylvania.
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Riots broke out in Paris, France, after two Muslim teenagers were electrocuted trying to evade police.
US President Woodrow Wilson announced the country would never fight another country for territory again.
Inventor Fred Waller patented the aquaplane, which would become water skis.
The first successful operation of conjoined twins joined at the head was completed in New Delhi, India.
Taylor Swift released her fifth studio album, '1989.'