On This Day: 1916 San Francisco Bombing

On July 22, 1916, there was a bombing of a parade in San Francisco that killed 10 and wounded 40. The bombing took place on what was called "Preparedness Day," organized by pro-business groups to keep people vigilant in case the United States entered World War I. The attack remains the worst act of terrorism in San Francisco history.

1916 San Francisco Bombing

Professor Jeffrey Johnson talks about the conditions in the city of San Francisco leading up to the bombing on July 22, 1916.