1. On September 29, 1780, the Battle of Charlotteville took place in what is now Juniata County. This skirmish was a part of the larger American Revolution and resulted in an American victory.

2. The first public meeting to discuss the possibility of building a canal system in Pennsylvania was held on September 29, 1823. This meeting led to the eventual construction of the Pennsylvania Canal, which greatly improved transportation and commerce in the state.

3. On September 29, 1864, Confederate troops under General Jubal Early arrived in Chambersburg, Pennsylvania, and burned much of the town in retaliation for Union destruction of property in the Shenandoah Valley.

4. September 29, 1907, marked the dedication of the Gettysburg Electric Railroad's new station in Gettysburg. The railroad played an important role in the development of the local tourism industry and provided transportation for visitors to the battlefield.

5. In 1975, the first national gathering of the Women's International League for Peace and Freedom was held in Philadelphia on September 29. This organization, founded in 1915, advocates for the prevention of war and supports the rights of women and marginalized groups.