|"Is this all real? Or has this been happening inside my head?"
The topic of this article is of a real-life subject that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
Massachusetts is a state located in New England, on the north-east coast of the continental United States. It is home to Mount Greylock, the location of Ilvermorny School of Witchcraft and Wizardry, as well as the towns of Salem, the location of the Salem Witch Trials in the 1690s, and Fitchburg, home town of the Fitchburg Finches Quidditch team.