1. On February 4, 1820, New Hampshire became the ninth state to ratify the U.S. Constitution's amendment that ensured free speech and press, as well as the right to petition the government for a redress of grievances (which later became the First Amendment).

2. February 4, 1873, marks the beginning of the first recorded case of political bribery in New Hampshire. New Hampshire Governor James A. Weston was convicted of accepting bribes from the state's National Bank to grant the bank a charter, leading to his impeachment and removal from office.

3. In 1909, on February 4, Manchester, New Hampshire, witnessed the groundbreaking ceremony for the construction of a new city hall, which would subsequently become the symbol of the city's civic pride.

4. On February 4, 1918, the New Hampshire State Legislature established an official state fish, the brook trout, to represent the state's abundant natural resources.

5. Finally, on February 4, 1953, Portsmouth Naval Shipyard in New Hampshire launched the world's first nuclear-powered submarine, the USS Nautilus. The ship made history by completing the first submerged transit of the North Pole, and it remains on display as a National Historic Landmark in Groton, Connecticut, today.