1923 - September 17 – Berkeley Fire: A major fire in Berkeley, California, erupts, consuming some 640 structures, including 584 homes in the densely built neighborhoods north of the campus of the University of California.

On September 17, 1923, a devastating fire broke out in Berkeley, California, wreaking havoc on the city. The fire quickly spread through the densely populated neighborhoods north of the University of California campus, consuming a total of 640 structures. Among these were 584 homes, leaving a trail of destruction in its wake. The fire's intensity was fueled by the densely built nature of the area, with structures packed closely together, providing ample fuel for the flames to spread rapidly.

The Berkeley Fire of 1923 was a tragic event that left a lasting impact on the community. It resulted in significant property damage and displacement of residents, many of whom lost their homes and belongings.