1. Christmas in New Hampshire wasn't always celebrated on December 25th. Prior to the adoption of the Gregorian calendar in 1752, many colonies, including New Hampshire, followed the Julian calendar, which placed Christmas on January 7th.

2. The first recorded Christmas celebration in New Hampshire took place in 1620 when English colonists in Portsmouth held a feast to mark the holiday.

3. In 1776, George Washington famously celebrated Christmas by crossing the Delaware River into New Jersey to launch a surprise attack on Hessian troops. While this event occurred outside of New Hampshire, it had a significant impact on the Revolutionary War and is still celebrated today as an important moment in American history.

4. In 1816, a "year without a summer" caused by the eruption of Mount Tambora in Indonesia resulted in snowfall in New Hampshire on Christmas Day. This unusual weather event made for a festive and memorable holiday.

5. In 1856, the Christmas ball was introduced in Concord, New Hampshire, becoming a popular holiday tradition throughout the state. The ball was a formal event featuring live music, dancing, and elaborate decorations, often held in the city's grandest hotels and ballrooms.