What did James hildreth use to create a fire break out in the great fire?

James Hildreth used a technique called "fire breaking" during the Great Fire of 1871 in Chicago. He created a fire break by demolishing buildings in the path of the advancing flames, thereby removing available fuel for the fire. This method aimed to halt the fire's spread by creating a gap where there were no structures to burn. Hildreth's actions were part of the broader efforts to control the devastating fire that consumed much of the city.