Leonora O’Reilly was born in New York. The daughter of Irish immigrants, she began working in a factory at 11, joined the Knights of Labor at 16, and was a volunteer investigator of the Triangle Shirtwaist Factory Fire of 1911. She was a founding member of the Women’s Trade Union League – 1870
Diamond Mine disaster in Braidwood, Ill. The coal mine was on a marshy tract of land with no natural drainage. Snow melted and forced a collapse on the east side of the mine, killing 74 – 1883
Beginning of a 17-week general strike of 12,000 New York furriers, in which Jewish workers formed a coalition with Greek and African American workers and became the first union to win a 5-day, 40-hour week – 1926
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