1. The state of New Hampshire was granted its charter on July 22, 1629, by King Charles I of England. This charter gave the right for colonists to settle in the area and establish a government.

2. On July 22, 1775, the Battle of Diamond Island took place during the American Revolutionary War. This battle saw American forces successfully defend the island on Lake Champlain against a British attack.

3. On July 22, 1824, the Marquis de Lafayette visited New Hampshire as part of his 1824-1825 tour of the United States. He was greeted with great enthusiasm by the people of the state.

4. In 1883, the first electric trolley cars began running in Concord, New Hampshire. This marked a major development in urban transportation and played a significant role in the growth of the city.

5. On July 22, 1982, the landmark education funding lawsuit Claremont v. Governor of New Hampshire was filed. The case challenged the state's reliance on local property taxes to fund education and led to significant changes in school funding policy.