1. In 1749, the city of Lancaster was officially incorporated in Pennsylvania. It is one of the oldest inland cities in the United States and served as the state capital for one day during the American Revolution.

2. On May 19, 1909, the Pennsylvania State Police was established by an Act of the State Legislature. The force was created to maintain law and order in rural parts of the state, where local law enforcement was often inadequate.

3. The Hershey Chocolate Company, which is now known as The Hershey Company, was founded on May 19, 1894, by Milton S. Hershey. The company is headquartered in Hershey, Pennsylvania, which is also known as “The Sweetest Place on Earth”.

4. In 1962, Pennsylvania Governor David L. Lawrence signed a bill that made Pennsylvania the first state to put a ban on Sunday hunting. The decision was made to allow “quiet recreation” on Sundays, including hiking, fishing, and bird-watching.

5. On May 19, 1935, a devastating fire broke out at the Ritz-Carlton Hotel in Philadelphia. The fire started in the basement and quickly spread through the building, killing 11 people and injuring many others. The tragedy led to improved fire safety codes and regulations in the city.