1. In 1854, the University of Pennsylvania School of Medicine became the first medical school in the United States to open a hospital specifically for women. The Philadelphia Hospital for Women, as it was called, provided a safe and supportive environment for female patients and helped to advance the field of women's health care.

2. On October 25, 1906, the Battleship USS Pennsylvania was launched in Newport News, Virginia. The ship served during both World War I and World War II and played a critical role in the defeat of Japan in 1945. Today, the battleship is a popular tourist attraction in Philadelphia.

3. In 1929, the first baseball World Series game was played at Shibe Park in Philadelphia. The Philadelphia Athletics defeated the Chicago Cubs 3-1 in the opening game of the series, which they would eventually win in five games. This was the first of five World Series titles for the Athletics franchise.

4. On October 25, 1940, Franklin D. Roosevelt delivered a campaign speech at the University of Pennsylvania in Philadelphia. In the speech, which became known as the "arsenal of democracy" address, Roosevelt outlined his plan to provide aid to Great Britain and other nations fighting against Nazi Germany.

5. The first American flag to be flown in the city of Philadelphia was raised on October 25, 1777. The flag, which had thirteen stars and thirteen stripes, was flown over the State House (now Independence Hall) to celebrate the surrender of British forces at the Battle of Saratoga. Today, the Stars and Stripes still fly proudly over Philadelphia and the rest of the country.