1. On July 7, 1777, the town of Henniker was incorporated as the fourth town in Hillsborough County. It was named after John Henniker, a British official who had granted the town's charter.

2. In 1853, the Chestnut Hill Baptist Church was organized in Exeter on July 7. The church's building was completed in 1854 and still stands today as a historic landmark.

3. On July 7, 1864, the town of Gorham held a celebration to honor the soldiers who had fought and died in the Civil War. The event featured speeches, music, and a parade.

4. In 1879, the first train arrived in North Conway on the Portland and Ogdensburg Railroad on July 7, opening up the region to tourism and commerce.

5. On July 7, 1941, the Mount Washington Cog Railway suffered a tragic accident when an overloaded train derailed, killing three passengers and injuring many others. The accident resulted in new safety regulations for the railway.