Pennsylvania became the second state to ratify the US constitution.
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Blacksmith, Patrick Lyon stole $162,821 in cash and gold from a vault at the Bank of Pennsylvania.
Donald Trump survived an assassination attempt during a campaign rally in Butler, Pennsylvania.
The Women's College of Pennsylvania, US opened – making it the 2nd female medical school in America.
Pittsburgh hosted the world's largest pinball tournament.
Polio vaccines were given to the first group of children in the US at Arsenal Elementary School in Pittsburgh, Pennsylvania.
