146 years ago, Thomas Edison entered the offices of Scientific American with a strange machine. Turning a crank on his cylinder phonograph, he astonished those present with the recording, "Good morning. How do you do? How do you like the phonograph? " It wasn’t until very recently in human history that sounds even could be recorded, and the invention of recording devices and media caused a monumental shift for society.
During the civil war, the manufacture of powder and explosives was often handled by the most vulnerable, young women and children, whose labor was needed when so many men had been sent off to war. On March 13, 1863, the confederacy experienced a munitions disaster, in the confederate capitol of Richmond.