On 11 November 1887 the prison in Illinois was preparing for the execution of Parsons, Spies, Fischer, and Engel, the Haymarket anarchists. The Haymarket Affair started in May 1886 when a mass meeting was held in the Chicago Haymarket in the course of a strike for the eight-hour workday. When the police ordered the protest meeting to disperse, a bomb was thrown by an unknown person, killing several officers. Four anarchists were accused. The drawing in Frank Leslie's Illustrated Newspaper shows the scaffold, complete with a trap door. The balcony outside the cells was on the same level. At the back was a large box in which the hangman waited to release the rope for the trap door. At the execution Parsons could not be prevented from speaking his last words: "Let the voice of the people be heard!"