A fire at a grade school in Chicago kills 87 children and three nuns on December 1, 1958; five more children later died as a result of their injuries.

The Our Lady of Angels School was operated by the Sisters of Charity in Chicago. In 1958, there were well over 1,200 students enrolled at the school, which occupied a large, old building. Unfortunately, little in the way of fire prevention was done before December 1958. The building did not have any sprinklers and no regular preparatory drills were conducted. When a small fire broke out in a pile of trash in the basement, it led to disaster.

The fire probably began about 2:30 p.m. and, within minutes, teachers on the first floor smelled it. These teachers led their classes outside, but did not sound a general alarm. The school’s janitor discovered the fire at 2:42 and shouted for the alarm to be rung. However, he was either not heard or the alarm system did not operate properly, and the students in classrooms on the second floor were completely unaware of the rapidly spreading flames beneath them.

Source: history.com for the complete article