December 30

Gathering in the back room of Behrens’ cigar shop in Sedalia, Mo., 33 railroad clerks form Local Lodge Number 1 of a union they named the Order of the Railroad Clerks of America - 1899

Idaho Gov. Frank Steunenberg, who had brutally suppressed the state’s miners, is killed by an assassin's bomb. Legendary Western Federation of Miners and IWW leader William "Big Bill" Haywood and two other men were put on trial for the death but were ultimately declared innocent - 1905

GM sit-down strike spreads to Flint, Mich., will last 44 days before ending in union victory - 1936