1. On July 21, 1763, the town of Hanover was incorporated. Hanover is home to Dartmouth College and has a rich history as an educational hub.

2. In 1808, on July 21, the Portsmouth Naval Shipyard was established in Kittery, Maine. However, the shipyard is closely tied to New Hampshire, as it sits on the state's border and employs many New Hampshire residents.

3. On July 21, 1848, the first women's rights convention in New Hampshire was held in Dover. This historic event marked the beginning of the women's suffrage movement in the state.

4. In 1864, on July 21, the Battle of Atlanta began during the American Civil War. Many soldiers from New Hampshire fought in this battle, which resulted in a Union victory.

5. On July 21, 1905, the first motorcycle race in New Hampshire was held in Manchester. This event helped to launch the state's love affair with motorcycling and racing.