The Triangle Shirtwaist Factory fire, which occurred on March 25, 1911, was a catastrophic event in labor history. The fire broke out in a garment factory located in New York City, resulting in the deaths of 146 workers, predominantly young immigrant women. Inadequate safety measures, locked exit doors, and the lack of fire escapes contributed to the high casualty rate. The tragedy highlighted the perilous working conditions prevalent in the garment industry and galvanized public opinion, leading to significant reforms in labor laws and workplace safety regulations. It became a pivotal moment in the labor movement and the push for workers' rights.