1. On December 11, 1775, the town of Sanbornton was incorporated by the New Hampshire General Court. The town was named after Samuel Sanborn, an early settler in the area who was known for his leadership and contributions to the community.

2. In 1843, the first annual meeting of the New Hampshire Horticultural Society was held in Concord on December 11. The society was founded to promote the cultivation and improvement of fruit, flowers, and vegetables in the state.

3. On December 11, 1872, the Granite State was hit by a severe snowstorm that lasted for three days. Snowdrifts up to 20 feet high blocked roads and trains, and many towns were cut off from the outside world. The storm caused extensive damage and several deaths.

4. In 1906, the New Hampshire State Board of Education decided to allow school children to be excused from attending school on December 11, if their parents preferred to keep them at home. The reason for this was to allow families to celebrate St. Lucia Day, a holiday that is traditionally observed in Sweden and other Scandinavian countries.

5. On December 11, 1922, the town of Hanover was the site of a historic performance by the Russian Ballet. The performance took place at Dartmouth College, and featured dancers from the Ballets Russes, a renowned ballet company that was founded by Sergei Diaghilev in Paris in 1909. The performance was a major cultural event in New Hampshire, and attracted a large audience from throughout the region.