The Great Chicago Fire makes sense in a weird way. Wood and brick were the building materials of choice back then, and wood burns like mad. There were no zoning laws to speak of; buildings were clustered together because “traffic” was a bunch of horses stopping for water or a poop. Go to any old town’s “historic district,” and you’ll see what I mean – it is not rare to find “roads” or alleys where you or a friend can touch buildings on both sides of the street.
When fire hit one house, it risked wiping out the block or the section of town for those very reasons. Add in the infancy and luddite nature of the fire fighting profession and technology and it was a recipe for disaster. Almost every major city around back then has some (much smaller) version of the Great Chicago Fire.
