During the American Civil War, an Ohio doctor named Richard Gatling witnessed almost daily the departure of troops to the front and the return of the wounded, sick, and dead.

• 美国南北战争期间，俄亥俄州一位叫理查．加特林的医生几乎天天都看见军队开赴前线，以及从前线回来的伤者病者死者。