1. Delaware officially became a state: On August 25, 1787, Delaware officially became the first state to ratify the United States Constitution. The signing took place at the Golden Fleece Tavern in Dover and marked an important moment in American history.

2. The Battle of Camden took place: On August 25, 1780, the Battle of Camden, a crucial battle in the American Revolution, took place in South Carolina. Although it was a British victory, the battle helped to shape the future of the war and contributed to the eventual American victory.

3. The Delaware Memorial Bridge opened: August 25, 1951, marked the opening of the Delaware Memorial Bridge, which spans the Delaware River and connects Delaware to New Jersey. The bridge is an important transportation hub and a symbol of the state's progress and innovation.

4. The University of Delaware was founded: On August 25, 1743, the University of Delaware was founded, making it one of the oldest universities in the country. Today, UD is a major research institution and a hub of academic and scientific activity.

5. Joe Biden was born: On August 25, 1942, Joe Biden, the 46th President of the United States, was born in Scranton, Pennsylvania. Although not a native of Delaware, Biden has long been associated with the state, having represented it in the Senate for over 35 years before becoming Vice President and ultimately President.