After the Civil War, a revolution takes place on the backs of visionary entrepreneurs. Budding innovators like Henry Heinz, John and Will Kellogg, and C.W. Post push the limits of ingenuity to launch businesses and change the American landscape forever.After the Civil War, a revolution takes place on the backs of visionary entrepreneurs. Budding innovators like Henry Heinz, John and Will Kellogg, and C.W. Post push the limits of ingenuity to launch businesses and change the American landscape forever.