Englishman William Penn founded Philadelphia, Pennsylvania.
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US President Woodrow Wilson announced the country would never fight another country for territory again.
Gliese 229B became the first brown dwarf to be seen and identified by astronomers.
Taylor Swift released her fifth studio album, '1989.'
The Second Battle of Newbury was fought in the English Civil War.
NASA's Saturn I rocket was tested for the first time in Mission Saturn-Apollo 1.
