The Jonestown Massacre took place in Guyana on November 18, 1978. This was a mass-suicide murder of a cult called the Peoples Temple. This massacre was run by the cult leader, Jim Jones. Jones told his members that soldiers were coming to torture them and some 900 members died in during this event. When Jones was younger, he sold live monkeys to people to raise money. The Jamestown Massacre was the largest killing of American civilians before the terrorists attacks on 9/11. In March of 1979, in Harrisburg, Pennsylvania, radioactive gases were released into the air from Three Mile Island nuclear generating plant. There weren't any serious health effects, but the public’s fear caused the plant to be shut down. Within five miles of the plant,