What was Arthur Millers purpose for writing "The Crucible"?

Arthur Miller made it very clear that he wrote The Crucible as an allegory—a play which represents something much, much deeper than what is on the surface—to show the similarities between the Salem Witch Trials of 1692 and events that were occurring in the United States during the 1950s. A "witch-hunt" was happening in the United States during that time period; but instead of the accused being labeled as "witches" as they were during the Salem Witch Trials, they were labeled as followers of the Communist Party or Communist supporters. Because of all those pointing fingers, over 200 people lost their jobs (mostly actors, directors, and writers in the movie industry) and found it very difficult to find jobs again once their reputations were ruined. Miller wrote The Crucible to compare the similarities of the Salem Witch Trials to the events of the 1950s to warn readers that history is likely to repeat itself.