History consists of a corpus ascertained facts. The facts are available to the historian in documents, inscriptions and so on, like fish in the fishmonger's slab. The historian collects them, takes them home, and cooks and serves them in whatever style appeals to him.
I think for being not unsympathetic that their appearance may also appear, so differently it, must; similarly as with animals, which meet us in very different forms, which look somehow harmonious however all. On exactly such forms I would stand.