1914: The Ludlow Massacre occurred during a strike by the United Mine Workers of America (UMWA) against the Colorado Fuel & Iron Company. Colorado National Guard and company guards attacked a tent colony of striking miners and their families, resulting in numerous deaths.
1948: An unknown assailant shoots through a window at United Auto Workers President Walter Reuther as he is eating dinner at his kitchen table, permanently impairing his right arm.
1980: UAW members end a successful 172 day strike against International Harvester, protesting management demands for new work rules and mandatory overtime provisions.
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