sentences:  Striking workers had taken militant action which culminated in the Haymarket Riot in Chicago; the Great Southwest Railroad Strike of 1886 was crushed, destroying the Knights of Labor, coincident with the birth of the conservative American Federation of Labor.In the western United States the Western Federation of Miners (WFM) inherited the mantle of militant unionism, challenging capital in strikes from Cripple Creek to Canada.Many communities sought to limit the spread of union philosophy by revoking rights granted by the United States Constitution, particularly the freedom of speech granted by the First Amendment.