Great Chicago Fire

The Great Chicago Fire killed approximately 300 people, destroyed over 17,000 structures, and left 100,000 people homeless. Although legend has it that the fire began when Mrs. O'Leary's cow kicked over a lantern, the official cause remains subject to speculation. On the 40th anniversary of the Great Chicago Fire, a decision was made to mark the date with a larger commemoration. The Fire Marshals Association of North America took the opportunity to begin providing the nation with information to prevent future fires. In 1925, President Calvin Coolidge established the first official National Fire Prevention Week.
The origin of National Fire Prevention Week can be traced back to the Great Chicago Fire.

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