The perplexing relation between the admittedly late compilations and the actual course of the early history becomes still more intricate when one observes such a feature as the late interest in the Israelite tribes.
After the testing is over, the hard part begins; weighing and recording my compilations and comparing them to past exposure levels.
The longer efforts partake of the nature of translations from sundry medieval compilations like those of Guido di Colonna and Boccaccio, which are in Latin.
Of the compilations based upon this work, without which they could not have been composed, there is no need to speak.
Taking the Western authorities for the First Crusade separately, one may divide them, in the light of von Sybel's work, into four kinds - the accounts of eye-witnesses; later compilations based on these accounts; semi-legendary and legendary narratives; and lastly, in a class by itself, the "History" of William of Tyre, who is rather a scientific historian than a chronicler.