The first music store in America was opened in Philadelphia by Michael Hillegas.
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The first US commercial bank, The Bank of North America, opened in Philadelphia.
The Women's College of Pennsylvania, US opened – making it the 2nd female medical school in America.
A giant ball of fire was seen arching across the sky from Michigan to Pennsylvania.
America's second president John Adams was inaugurated in Philadelphia, Pennsylvania.
The American Declaration of Independence was publicly released in the Pennsylvania Evening Post.
