1. On September 13, 1788, New Jersey became the third state to ratify the United States Constitution, joining Delaware and Pennsylvania in supporting the new federal government.

2. The Battle of Hobkirk's Hill, a significant engagement of the American Revolutionary War, took place on September 13, 1781, in present-day Camden, New Jersey. British forces led by Lieutenant Colonel Francis Rawdon defeated American troops under the command of Brigadier General Thomas Sumter.

3. On September 13, 1847, the City of Paterson in Passaic County, New Jersey, declared itself a free city—a haven for runaway slaves seeking refuge and protection from the institution of slavery.

4. The USS New Jersey (BB-62), a battleship and one of the most decorated ships of the United States Navy, was christened and launched on September 13, 1942, at the Philadelphia Naval Shipyard in Pennsylvania. The ship served in World War II, the Korean War, and the Vietnam War and now serves as a museum in Camden, New Jersey.

5. The Great Atlantic Hurricane, one of the deadliest and most destructive hurricanes in New Jersey history, struck the state on September 13, 1944. The storm caused extensive property damage, flooded coastal communities, and killed 15 people in New Jersey alone.