San Francisco Burning of the Cliff House September 7, 1907 Real Photo Postcard

Large-scale urban fires were a recurring and devastating concern in the late 19th and early 20th centuries, often exacerbated by dense wooden construction, inadequate infrastructure, and less sophisticated firefighting capabilities of the era. These events could quickly reduce vast areas of a city to rubble, impacting communities economically and socially, and frequently leading to significant reforms in building codes and urban planning to prevent future catastrophes.