1. The Boston Massacre: On March 9, 1770, tensions between British soldiers and American colonists boiled over in Boston, resulting in a violent confrontation that would become known as the Boston Massacre. Five colonists were killed and six more were wounded in the incident, which played a pivotal role in accelerating the American Revolution.

2. The Great Blizzard of 1888: On March 9-13, 1888, a historic snowstorm known as the Great Blizzard of 1888 struck the Northeastern United States, including Massachusetts. The storm brought over 50 inches of snow in some areas and resulted in widespread transportation disruptions and power outages.

3. The First Women's Libel Case: On March 9, 1735, an indictment was issued against New England journalist John Peter Zenger for seditious libel, following his publication of an article critical of New York Governor William Cosby. The subsequent trial became a landmark case for freedom of the press and is considered the first women's libel case, as Zenger's wife Anna Catherine was instrumental in organizing public support for her husband.

4. The Salem Witch Trials: On March 9, 1692, Martha Corey was arrested and accused of witchcraft in Salem, Massachusetts. Corey's trial and subsequent execution were part of the infamous Salem Witch Trials, which resulted in the deaths of 20 people between 1692-1693.

5. The Establishment of the Boston Fire Department: On March 9, 1678, the Boston Fire Department was established, making it the oldest operating fire department in the United States. Initially consisting of volunteer firefighters, the Boston Fire Department has grown into a professional force with over 1,500 firefighters and a fleet of modern firefighting vehicles.