1. In 1780, the Battle of Musgrove Mill took place in South Carolina during the American Revolution. Though it was not fought in Pennsylvania, it had significant implications for the state's military history, as many Pennsylvanians served in the Continental Army and fought in battles throughout the colonies.

2. In 1825, the Pennsylvania State Agricultural Society held its first annual exhibition in Philadelphia. This event helped to promote agriculture in the state and encouraged the adoption of new farming techniques and technologies.

3. On September 25, 1918, Allied forces launched a major offensive against German troops on the Western Front during World War I. Known as the Meuse-Argonne Offensive, this battle was one of the largest and deadliest of the war, with over 1.2 million soldiers involved and more than 26,000 Americans killed.

4. In 1926, Winnie Ruth Judd, a medical student originally from Pennsylvania, murdered two of her roommates in Phoenix, Arizona. The infamous "Trunk Murderess" case captivated the nation and remains a popular subject of true crime enthusiasts to this day.

5. In 1978, the Philadelphia Eagles defeated the New York Giants 19-17 in a thrilling game at Giants Stadium. This victory helped the Eagles secure their first playoff appearance in 18 years and marked a turning point for the team, which would go on to reach the Super Bowl just a few years later.