1. On February 22, 1854, the New Hampshire legislature established the state's first railroad commission. The commission was tasked with regulating the state's rapidly expanding network of railroads, which had become a major engine of economic growth and development.

2. February 22, 1904, marked the birth of New Hampshire native Robert W. Holley. Holley went on to become a renowned biochemist, and in 1968 he was awarded the Nobel Prize in Chemistry for his work on the structure of tRNA molecules.

3. On February 22, 1732, the township of Derryfield was incorporated. The town, which would later become Manchester, was named for the city of Manchester, England, and would go on to become a major center of industry and commerce in New Hampshire.

4. February 22, 1894, saw the birth of Henry W. Keyes, who would go on to become the 60th Governor of New Hampshire. Keyes was known for his strong support of conservation and environmentalism, and he played a major role in the establishment of the White Mountain National Forest.

5. Finally, on February 22, 1980, the New Hampshire Supreme Court issued its landmark ruling in the case of Claremont v. Governor of New Hampshire. The ruling, which centered on the state's system of funding public education, ultimately led to significant reforms that helped ensure equal access to education for all of New Hampshire's children, regardless of their economic background.