After an extremely hot and dry summer, Chicago got a spark that grew into something unimiginable and unforgettable on Oct. 8, 1871. On Oct. 8, 1871, what became known as "the Great Chicago Fire" was a massive firestorm that moved faster than most men could run, fueled by southwest winds of at least 30 miles per hour. The heat was so intense it melted stone and brick buildings in minutes and turned sand on the lakeshore into glass. A total of 18,000 buildings were destroyed. About 100,000 w...