In 1692, the largest witch hunt in American history gripped the town of Salem, Massachusetts. 150 people were imprisoned, and twenty executed. The witchcraft hysteria started in late February, when several young girls began acting strangely. On March 1, one of the girls confessed to witchcraft during an interrogation. The witchcraft scare spun out of control for about a year, until Governor William Phips pardoned the remaining prisoners in 1693.