It started with Mrs. O’Leary’s cow. The field of architectural engineering owes its beginning to the Great Chicago Fire when, on Sunday evening, October 8, 1879, a fire swept through the city, burning more than three square miles, leaving approximately 100,000 people homeless and 300 people dead. The estimated property loss was $190,000,000, or approximately $450 billion in 2016 dollars.
While the fire was never actually traced to a cow kicking over a lantern, a gradual change took place while Chicagoans rebuilt their city. Structural steel was developed, the first skyscraper was built, and structural and civil engineering gave birth to architectural engineering.