In one of the deadliest single-building fires in United States history, the Iroquois Theatre fire in Chicago killed more than 600 people.

Iroquois Theatre fire

1903 building fire in Chicago, Illinois

The Iroquois Theatre fire was a catastrophic building fire in Chicago, Illinois, that broke out on December 30, 1903, during a performance attended by 1,700 people. The fire caused 602 deaths and 250 non-fatal injuries. It ranks as the worst theater fire in the United States,…