Question: "1913 Massacre" is a topical ballad written by Woody Guthrie, the song is about the death of striking copper miners and their families in Calumet, Michigan, on Christmas Eve, 1913, in what is commonly known as which tragedy that occurred on December 24, 1913, in Calumet, Michigan?
Sentence (from "Copper Country strike of 1913–14"): While unsuccessful, the strike is considered a turning point in the history of the Copper Country.
Relevant evidence: No