Abraham Lincoln himself once said that he did not understand the terrible war it fell on him to wage. The best explanation he could offer in his second inaugural for the carnage he seemed powerless to end was that “the Almighty has His own purposes.”
Americans in general and historians in particular have been trying to discover those purposes ever since the firing ended, their findings often casting more light on the time in which they were made than upon the time when all that blood was spilled. The race to discover what really happened between 1861 and 1865 shows no signs of slowing down, and three provocative recent books challenge three ancient myths about the war.