1. On September 18, 1982, the UNH Wildcats football team defeated the Villanova Wildcats by a score of 28-7. This marked the first game at UNH's new football stadium, which was later named Cowell Stadium in honor of longtime coach William "Butch" Cowell.

2. In 1853, the first state fair was held in Concord, NH on September 18th. The fair was organized by the New Hampshire Agricultural Society and featured exhibits, livestock shows, and games.

3. On September 18, 1789, Samuel Livermore was appointed the first Chief Justice of the New Hampshire Supreme Court. Livermore had previously served as a delegate to the Continental Congress and was instrumental in the drafting of the US Constitution.

4. The town of Plymouth, NH was founded on September 18, 1763 by Governor Benning Wentworth. The town was named after Plymouth, Massachusetts and is known for its historic downtown area and close proximity to the White Mountains.

5. On September 18, 1947, aviation pioneer Amelia Earhart was posthumously awarded the Distinguished Flying Cross by the US Army Air Forces. Earhart had disappeared in 1937 while attempting to fly around the world, and her bravery and contributions to aviation were recognized with this prestigious honor.