One of the most violent tragedies in the U.S. labor movement was the Haymarket Affair in Chicago May 4, 1886, after which seven workers would be executed for alleged conspiracy to commit murder. It started with a spirited, nationwide general strike that kicked off three days earlier as hundreds of thousands of workers flooded the streets of industrial centers demanding safe working conditions and an 8-hour workday. The movement was headquartered in Chicago. After police fired into a crowd of strikers still on the picket line May 3, a fiery, immigrant labor activist who witnessed their murder would speak out in outrage the next day at Haymarket Square. In this first of a two-part look at the Haymarket Affair, we look at the events and a key participant that led to Haymarket becoming history. #PROUAW #UnionHistory ... See MoreSee Less