Blacksmith, Patrick Lyon stole $162,821 in cash and gold from a vault at the Bank of Pennsylvania.
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Pittsburgh hosted the world's largest pinball tournament.
Harriet Tubman escaped from slavery.
The Women's College of Pennsylvania, US opened – making it the 2nd female medical school in America.
Milton S. Hershey founded Hershey's Chocolate Company in Lancaster, Pennsylvania, US.
During the American Revolution, Lancaster in Pennsylvania became the capital of the United States for just one day.
