1. In 1733, the town of Lancaster, Massachusetts was incorporated as a separate municipality. Lancaster played a significant role in the American Revolution, as it was the site of several battles and skirmishes.

2. On February 12, 1770, the Boston Massacre occurred. This event was sparked by tensions between British soldiers and American colonists, and it ultimately led to the American Revolution.

3. In 1809, Abraham Lincoln's parents, Thomas Lincoln and Nancy Hanks, were married in Springfield, Massachusetts. While Lincoln was not born in Massachusetts, this state played an important role in his family's history.

4. On February 12, 1912, the cornerstone of the Boston Public Library's Copley Square building was laid. The library is one of the largest municipal public library systems in the United States, with over 24 million books, maps, and other materials in its collection.

5. In 2014, the city of Boston was hit by a massive winter storm that dumped over two feet of snow in some areas. Dubbed "Snowpocalypse," the storm caused widespread power outages, transportation disruptions, and other problems. Despite these challenges, many Bostonians came together to help their neighbors and keep their city running.