1. On July 25, 1870, the world's first mountain-climbing cog railway began operation in New Hampshire. The Mount Washington Cog Railway was the world's second railway of this type, behind the Rigi Mountain Railway in Switzerland.

2. In 1903, on July 25th, Portsmouth Naval Shipyard was established. The shipyard played a crucial role in World War II, repairing many of the Navy's vessels that were damaged in the Pacific Theater.

3. On July 25, 1910, the first passenger flight in New Hampshire took off from Concord. The flight was piloted by John B. Barnard, who took off from the State fairgrounds and flew to Manchester.

4. In 1963, President John F. Kennedy visited New Hampshire on July 25th, delivering a speech at the University of New Hampshire in Durham. It was Kennedy's second visit to the state, as he campaigned there during the 1960 presidential election.

5. On July 25, 1989, the historic Eagle Hotel in Concord was destroyed in a fire. The hotel, which had been in operation since 1827, was a popular meeting place for politicians and businessmen, including several New Hampshire governors.