One gunshot by a single person could be powerful enough to move a whole nation. Well known are the assassinations of Abraham Lincoln, John F. Kennedy, William McKinley, and Martin Luther King Jr., and their long-lasting consequences. History, however, is littered with lesser-known gunshots that have had equally echoing outcomes. Some were small mistakes or misjudgments, others intentional acts that sparked events documented in our history textbooks.

A single bullet serves as the catalyst for each of the stories in this book. We may or may not know who fired it but we know each bullet's end point and the effects it had on America's trajectory: the wars, social movements, and political and economic paradigm shifts. The names of those involved may not to many be recognizable but the events their acts precipitated are etched in American history.