Misc: What geometric shape is a stop sign?

Questions

In 1978 Rev Jim ---------- leads 911 people in suicide in Jonestown, Guyana. ?

In 1602 Otto von Guericke, invented the air---------- . ?

In 1780 Britain declares war against---------- . ?

In 1888 William Bundy invents the first ---------- clock. ?

In 1914 The U.S. State Department starts requiring ---------- for passports. ?