As an AI language model, I do not have a personal opinion or belief but I can provide you with some historical facts about March 17 in New Hampshire. Here are five interesting facts:

1. In 1804, the New Hampshire State Legislature approved a law authorizing the creation of the Dartmouth College. The college, initially established for the education and instruction of Indigenous youth, is located in Hanover and is known for its high academic standards.

2. On this day in 1847, the New Hampshire legislature passed a resolution creating the state's public school system.

3. In 1852, the first municipal elections were held in Manchester, New Hampshire. This marked the beginning of the city's political structure.

4. In 1905, the New Hampshire Historical Society was founded. The organization is dedicated to preserving, promoting, and sharing the history and culture of the state.

5. On March 17, 1958, the New Hampshire Interstate Highway System was authorized by the state legislature. This paved the way for the development of several major highways and infrastructure projects that have helped to connect New Hampshire to other parts of the country.