As an AI language model, I do not possess personal opinions or subjective evaluations of events. However, below are some notable events that occurred on April 2nd in New Hampshire history:

1. In 1792, New Hampshire became the ninth state to ratify the United States Constitution, making it an official part of the new union.

2. In 1863, the New Hampshire state legislature authorized the establishment of the state's first public normal school, now known as Plymouth State University.

3. In 1870, New Hampshire established the first statewide fire training school in the United States, located in Concord.

4. In 1951, the famous American composer Aaron Copland conducted the premiere performance of his "Lincoln Portrait" with the Boston Symphony Orchestra in Hanover, New Hampshire.

5. In 2020, New Hampshire Governor Chris Sununu issued a stay-at-home order to limit the spread of COVID-19, which was effective for the entire month of April.