Arthur Miller: Why I Wrote "The Crucible"

In those years, our thought processes were becoming so magical, so paranoid, that to imagine writing a play about this environment was like trying to pick one's teeth with a ball of wool: I lacked the tools to illuminate miasma. Yet I kept being drawn back to it.
I had read about the witchcraft trials in college, but it was not until I read a book published in 1867—a two-volume, thousand-page study by Charles W. Upham, who was then the mayor of Salem—that I knew I had to write about the period. Upham had not only written a broad and thorough investigation of what was even then an almost lost chapter of Salem's past but opened up to me the details of personal relationships among many participants in the tragedy. [from UnknownNews.net]