That is the day of the famous Chicago fire, in which 250 people died. The Peshtigo Forest Fire on the exact same day killed 1,182 people in Wisconsin. A common grave marks the site where 600 people are buried, more than twice the number that died in Chicago. Forest fires have traditionally been classed as disasters when economic loss occurs, and the major summer fires in the West qualify, in part because of merchantable timber losses. I know of no native species of plant or animal that has ever gone extinct because of natural fires on any continent.
Organisms evolve to resist fires in regions where fire is a natural phenomenon.
Where fires occur frequently from lightning, nature is prepared. Jack pines in the upper Midwest depend on fires to open the seeds. Meanwhile, burning of the litter layer exposes mineral soil, optimizing seed establishment. A side benefit is the return of essential nutrients to the soil. In a region with fire-tolerant vegetation, native animals are also resistant.