Answer and Explanation:
Arthur Miller wrote "The crucible" using all the fear and hysteria that was going on in America during Macarthism, where people accused each other of being involved with communism, however these charges were completely meaningless, without justification and without evidence. This wave of accusations and fear, made him remember the Salem Trials, which he had studied a few years ago. In this case, Miller, used Macarthismo as the main resource for his work, but used sources that reported the Salem trials, visited the place where the trials were carried out. He also used documents on Nazism and anti-Semitism, probably to have more sources on collective fear and persecution.