Margaret Macmillan said this quote

In a secular world, which is what most of us in Europe and North America live in, history takes on the role of showing us good and evil, virtues and vices. Religion no longer plays as important a part as it once did in setting moral standards and transmitting values. . . .History with a capital H is being called in to fill the void. It restores a sense not necessarily of a divine being but of something above and beyond human beings. It is our authority: it can vindicate us and judge us, and damn those who oppose us.