On December 24, 1913, area copper miners had been on strike for five months. The miners were fighting for better pay, shortened work days, safer working conditions and union recognition. That day, during a yuletide party for the striking miners and their families, someone yelled, "Fire!" Although there was no fire, seventy-three person died while attempting to escape down a stairwell that had doors that opened inward. Over half of those who died were children between the ages of six and ten. The perpetrator of the tragedy was never identified. The strike ended in April 1914.