The first music store in America was opened in Philadelphia by Michael Hillegas.
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America's second president John Adams was inaugurated in Philadelphia, Pennsylvania.
Englishman William Penn founded Philadelphia, Pennsylvania.
Blacksmith, Patrick Lyon stole $162,821 in cash and gold from a vault at the Bank of Pennsylvania.
Harriet Tubman escaped from slavery.
The Women's College of Pennsylvania, US opened – making it the 2nd female medical school in America.
