Philadelphia and Rochester. https://en.wikipedia.org/wiki/Black_Friday_(shopping)#Origin_of_the_term_Black_Friday https://en.wikipedia.org/wiki/Black_Friday_(sh

Philadelphia and Rochester. https://en.wikipedia.org/wiki/Black_Friday_(shopping)#Origin_of_the_term_Black_Friday https://en.wikipedia.org/wiki/Black_Friday_(shopping)#Origin...