Haymarket Riot By sydneybortz Jan 1, 1866 Labor union passes 8-hour workday Actua Date, Not known, Only know year of 1866. Jan 1, 1867 Illinois is first to enact 8 hour law Date not known. Only know year of 1867. Jan 1, 1878 Albert Parsons elected secretary of Chicago's 8 Hour league. Date not known. Only know 1878. May 1, 1886 Organized strikes fighting for 8 hour work days May 1, 1886 100,00 American workers go on strike supporting 8 hour work day May 4, 1886 Meeting of Workingmen near Haymarjet Square May 4, 1886 Police arrvie to make peace May 4, 1886 Bomb is thrown killing some workingmen & police officers Aug 20, 1886 8 men convicted guilty and sentenced to death Nov 11, 1887 Spies, Parsons, Fielden, and Engel are hanged