The Great Uprising nationwide railway strike begins in Martinsburg, W.Va. after railroad workers are hit with their second pay cut in a year. In the following days, strike riots spread through 17 states. The next week, federal troops were called out to force an end to the strike - 1877

10 miners accused of being militant "Molly Maguires" are hanged in Pennsylvania. A private corporation initiated the investigation of the 10 through a private detective agency. A private police force arrested them, and private attorneys for the coal companies prosecuted them. "The state provided only the courtroom & the gallows," a judge said many years later - 1877

The Amalgamated Assn. of Iron and Steel Workers is formed. It partnered with the Steel Workers Organizing Committee, CIO in 1935; both organizations disbanded in 1942 to form the new United Steelworkers - 1876