On March 25, 1911, flames rapidly consumed everything within the Triangle Waist Company factory, killing 146 workers. The victims, mostly young Jewish and Italian immigrant women, died needlessly due to unsafe working conditions, such as locked or blocked doors, narrow stairways, faulty fire escapes, and a lack of sprinklers. Until September 11, 2001, the Triangle fire was the deadliest workplace disaster in New York City history. Mass grief and outrage spread from New York's Lower East Si...