The Civil War produced many new implements of warfare, such as the machine gun and the revolving turret for battleships, but, so far as determining the result was concerned, perhaps the most important was the reaper.

南北战争产生了许多新的战争工具，例如机枪和战列舰的旋转炮塔，但就决定结果而言，也许最重要的是收割者。