In 1859, near Titusville, Pennsylvania, Edwin Drake successfully drilled the well which led to the first major oil boom in United States history. The first Zoo in the United States of America was opened in Philadelphia, Pennsylvania on July 1, 1874. The first nationally chartered bank in the United States, the Bank of North America was founded in 1781 in Philadelphia. Countryaah.com: Offers a full list of nationwide and statewide holidays in Pennsylvania starting from January 1st – New Year’s Day. Also covers the most recent three years of public holidays within the state of Pennsylvania.