1. On March 22, 1775, New Hampshire's Provincial Congress voted to raise two regiments of volunteer soldiers to fight in the American Revolutionary War. These regiments, known as the New Hampshire Line, would play a crucial role in the war effort and contribute significantly to the Continental Army.

2. March 22, 1839, marks an important event in the history of education in New Hampshire. On that day, the state legislature passed a law establishing a system of public schools, making New Hampshire one of the first states in the country to do so.

3. In 1872, on March 22nd, the town of Sutton in New Hampshire was incorporated. Sutton, located in Merrimack County, is known for its picturesque New England setting, with rolling hills, farms, and historic architecture.

4. March 22, 1905, saw the birth of Portsmouth-born author John Knowles, best known for his 1959 novel "A Separate Peace." The book, set in a New England prep school during World War II, explores issues of friendship, rivalry, and guilt.

5. On March 22, 1972, the University of New Hampshire's Whittemore Center Arena opened in Durham. The arena, which has a seating capacity of over 6,500, serves as the home of the UNH Wildcats hockey team and has hosted a variety of concerts, shows, and other events over the years.