1. In 1883, the world's first electric street railway began operation in Concord, New Hampshire. The railway ran along Main Street and provided transportation to local residents and visitors.

2. On December 6, 1909, the first New Hampshire state motor vehicle law went into effect. The law required drivers to be licensed and registered with the state, and it also established speed limits and safety regulations for motor vehicles.

3. In 1942, the Mount Washington Hotel in Bretton Woods, New Hampshire was the site of the Bretton Woods Conference. The conference was a meeting of representatives from 44 countries to discuss the post-World War II international monetary system.

4. On December 6, 1972, the New Hampshire Supreme Court ruled that the state's constitution guaranteed the right to privacy. The ruling was in response to a case involving a woman who had been arrested and charged with possession of marijuana.

5. The first-ever indoor hockey game in the United States was played on December 6, 1884, at the Concord Ice Rink in New Hampshire. The game was between the St. Paul's School and the Concord High School, and it ended in a 1-1 tie.