1. On October 26, 1776, Pennsylvania's delegation to the Continental Congress signed the Articles of Confederation, which established the first constitution for the newly formed United States.

2. On October 26, 1825, the Schuylkill Canal, a transportation route for coal and other goods between Pottsville and Philadelphia, officially opened with the arrival of the first boat at the Port of Philadelphia.

3. October 26, 1861, marked the year that the first Pennsylvania cavalry regiment, known as the 6th Pennsylvania Cavalry, was mustered into service during the Civil War. The unit would go on to serve in numerous campaigns throughout the war.

4. On October 26, 1911, the Pennsylvania Railroad's T1 locomotive made its debut, considered one of the most technologically advanced steam locomotives of its time. The T1 was designed to be aerodynamic and efficient, reaching speeds of up to 120 miles per hour.

5. In 1978, on October 26, the Philadelphia-based band, The O'Jays, received their first gold record for their hit single "Use ta Be My Girl." The song reached number four on the Billboard Hot 100 chart and was one of the most successful singles for the group.