1. On December 12, 1902, the first trolley car on the Manchester Street Railway began operation. The railway would go on to be a popular mode of transportation in Manchester for many years.

2. In 1912, the Amoskeag Manufacturing Company, which was one of the largest textile producers in the world at the time, closed its doors on December 12. This had a significant impact on Manchester's economy, as many people had been employed by the company.

3. On December 12, 1858, New Hampshire Governor William Haile died in office. Haile was a staunch abolitionist and had been a strong supporter of Abraham Lincoln. His sudden death was a shock to the state.

4. In 1936, on December 12, the first ski tow in New Hampshire was installed at the Pinnacle Ski Area in Gorham. This innovation helped to make skiing more accessible and popular in the state.

5. December 12, 2000, was a significant day in New Hampshire's political history. It was the day that Al Gore conceded the presidential election to George W. Bush, following a long and controversial recount in Florida. This concession effectively ended the election and cemented Bush's victory.