Jonestown

The Peoples Temple Agricultural Project, better known by its informal name "Jonestown", was a remote settlement in Guyana, established by the Peoples Temple, a San Francisco-based cult under the leadership of Jim Jones.

The settlement became internationally known when, on November 18, 1978, a total of 918 people died at the settlement, at the nearby airstrip in Port Kaituma, and at a Temple-run building in Georgetown, Guyana's capital city. The name of the settlement became synonymous with the incidents at those locations.In total, 909 individuals died in Jonestown, all but two from apparent cyanide poisoning, in an event termed "revolutionary suicide" by Jones and some Peoples Temple members on an audio tape of the event, and in prior recorded discussions.

Source: Wikipedia