1. On July 11, 1809, New Hampshire became the first state to establish a state agricultural fair. The event, now known as the Hopkinton State Fair, has been held annually ever since.

2. In 1917, on this day, a train carrying 1,000 German prisoners of war derailed in Northfield. The incident resulted in the death of five prisoners and one Army guard. The event is widely considered to be one of the most significant events in the history of the town.

3. On July 11, 1922, the famous American poet Robert Frost purchased a farm in Franconia. The property, now known as the Frost Place, served as Frost's primary residence until his death in 1963. Today, the property is a museum and a center for poetry and the arts.

4. In 1947, on this day, a massive forest fire broke out in the White Mountains. The fire, which burned for two days, destroyed 23,000 acres of forest and numerous buildings, including the historic Mount Carrigain House.

5. On July 11, 1955, the town of Portsmouth was officially designated a National Historic Landmark District. The town is home to numerous historic buildings and sites, including the Portsmouth Harbor Lighthouse and the homes of numerous famous American authors, such as John Irving and E.E. Cummings.