Biography
Michael Schwab was a German-born bookbinder and assistant editor of the Arbeiter-Zeitung. He had been at a separate union meeting on the evening of the bombing and prosecutors did not place him in the square. Sentenced to death, he and Samuel Fielden petitioned the governor for mercy and had their sentences commuted to life imprisonment in 1887. Pardoned by Governor Altgeld on June 26, 1893.
On May 4, 1886, a rally in Chicago's Haymarket Square in support of an eight-hour workday and against the police killing of striking workers at the McCormick Reaper plant the previous day was nearing its end when an unknown assailant threw a bomb into a column of police advancing to disperse the crowd. The explosion and the police gunfire that followed killed seven officers and at least four civilians. Eight Chicago anarchist organizers were arrested and tried together for the bombing, although no evidence ever connected most of them to the device or the bomb-thrower. The 1886 trial, presided over by Judge Joseph Gary, was widely condemned at the time and since as a political prosecution. Four were hanged on November 11, 1887; one died in his cell the night before the executions. Three years later, on June 26, 1893, Illinois Governor John Peter Altgeld pardoned the three surviving prisoners and issued a long public statement excoriating the trial as a miscarriage of justice. The case helped establish May 1 as International Workers' Day around the world.