1. In 1752, the first hospital in America was established in Philadelphia, now known as Pennsylvania Hospital. It was founded by Benjamin Franklin and Dr. Thomas Bond, and initially housed just eight beds.

2. On March 11, 1767, the Pennsylvania Assembly passed the "Preservation of the King's Peace" law, which allowed British officers to search private homes without a warrant, leading to increased tensions between the colonists and the British.

3. March 11, 1971 marked the beginning of the largest prison uprising in U.S. history at the Attica Correctional Facility in New York, which had an impact on prison reform efforts nationwide, including in Pennsylvania.

4. In March 11, 1985, Pennsylvania's Governor Dick Thornburgh declared a state of emergency due to a chemical fire at a chemical plant in Institute, West Virginia that was releasing toxic fumes into the air, which could have impacted the health and safety of Pennsylvania residents along the Ohio River.

5. On March 11, 2005, Pennsylvania Governor Edward G. Rendell signed a law prohibiting discrimination based on sexual orientation, making Pennsylvania the 21st state in the nation to extend legal protection to LGBT individuals.