1. On July 9, 1877, a deadly train accident occurred in Wilton, New Hampshire. The Manchester and Keene Railroad train was carrying approximately 200 passengers and derailed, causing four deaths and numerous injuries.

2. The New Hampshire state motto, "Live Free or Die," was adopted on July 9, 1945. The motto is a symbol of the state's commitment to individual liberty and self-determination.

3. In 1973, two women, Muriel Kennedy and Donna Gallup, made history by becoming the first female firefighters in Manchester, New Hampshire. They were hired on July 9 and went on to pursue successful careers in firefighting.

4. On July 9, 1982, the historic Mt. Washington Hotel in Bretton Woods, New Hampshire, was added to the National Register of Historic Places. The hotel has played a significant role in New Hampshire's tourism industry for over a century.

5. In 2019, the town of Dover, New Hampshire, celebrated the 400th anniversary of its founding. On July 9 of that year, a commemorative ceremony was held to honor the town's rich history and cultural significance.