1. In 1784, Pennsylvania politician, physician and scientist Benjamin Rush founded the first anti-slavery society in America in Philadelphia, marking a significant moment in the history of the abolitionist movement.

2. On August 11, 1864, Confederate forces led by General John McCausland raided the town of Chambersburg in Franklin County, Pennsylvania, burning it to the ground in an act of retribution for Union army destruction of property in the Shenandoah Valley.

3. In 1919, Pennsylvania became the sixth state to ratify the 19th Amendment to the US Constitution, granting women the right to vote.

4. On this day in 1938, groundbreaking ceremonies were held in Hershey, PA for the construction of the largest chocolate factory in the world, built by The Hershey Company.

5. In 1965, an EF3 tornado tore through the town of Palmerton in Carbon County, Pennsylvania, killing two people and causing extensive damage to homes and businesses. The event remains one of the deadliest tornadoes in Pennsylvania history.