The Our Lady of the Angels School Fire broke out shortly before classes were to be dismissed on December 1, 1958, at the foot of a stairway in the Our Lady of the Angels School in Chicago, Illinois. The elementary school was operated by the Roman Catholic Archdiocese of Chicago. A total of 92 pupils and 3 nuns lost their lives when smoke, heat, and fire cut off their normal means of escape through corridors and stairways. Many more were injured when they jumped from second-floor windows (which were as high as a third floor would be on level ground).