Tragic trials and convictions of witches and wizards in North America by Puritans who believed that magic was the devil possessing the accused person. Many of the accused were actually magical, although some were merely unfortunate No-Majs. At least two Judges were known Scourers (Pm).
The trials cause greatly decreased immigration of magical folk to America, and led to the formation of the Magical Congress of the United States of America (MACUSA), whose first act was to put on trial the Scourers who betrayed their fellow magic-users.
Contrary to popular belief that hundreds of people died in the Salem Witch Trials, only about twenty were ever actually executed before the trials were stopped and those who had been convicted were released.