The fact that nobody saw the end coming, the way it did, highlights the value of going back, a hundred years later, and reliving events day by day, as they took place. What may seem obvious now was anything but so then, and we do the people who lived through it, and our understanding of them, a real disservice when we assume that it was. “Life can only be understood backwards,” the Danish philosopher Soren Kierkegaard observed, “but it must be lived forwards.”