1. On December 28, 1732, the town of Londonderry was incorporated in New Hampshire. The town was named after the city Londonderry in Ireland and it originally included the present-day towns of Derry and Windham.

2. Four years later, on December 28, 1736, the town of Chester was incorporated in New Hampshire. The town was named after the city Chester in England, and it was originally part of the Massachusetts Bay Colony until New Hampshire became a separate province in 1679.

3. In 1864, on December 28, the Battle of Kingston was fought during the American Civil War. It was a minor engagement between Union and Confederate forces in New Hampshire, and it resulted in a Union victory.

4. On December 28, 1945, the New Hampshire State Board of Education approved a plan for the establishment of a University of New Hampshire School of Law. The law school was opened in Concord in the following year and later moved to Durham in 1973.

5. Finally, on December 28, 1983, the Mount Washington Observatory recorded the highest wind speed ever measured by man at the time, with a gust of 231 mph. The observatory is located near the summit of Mount Washington, which is the highest peak in the northeastern United States.