The Haymarket Affair Bombers are Executed by Hanging. November 11, 1887: The Haymarket Affair bombers, August Spies, Albert Parsons, Adolph Fischer and George Engel are executed. The Haymarket affair a/k/a the "Haymarket Massacre" and "Haymarket Riot" was a bombing that occurred at a labor demonstration on May 4, 1886, at Haymarket Square in Chicago. … [Read more...]