The crudest analytical procedure consists in rejecting those details in the legendary narrative which appear impossible, miraculous, contradictory, or absurd, and retaining the rational residue as historical. This is how the Protestant rationalists of the eighteenth century treated biblical narratives. One might as well amputate the marvellous part of a fairy tale, suppress Puss in Boots, and keep the Marquis of Carabas as an historical character. A more refined but no less dangerous method is to compare different legends in order to deduce their common historical basis. Grote[162] has shown, with reference to Greek tradition, that it is impossible to extract any trustworthy information from legend by any process whatever.[163] We must make up our minds to treat legend as a product of imagination; we may look in it for a people's conceptions, not for the external facts in that people's history. The rule will be to reject every statement of legendary origin; nor does this apply only to narratives in legendary form: a narrative which has an historical appearance, but is founded on the data of legend, the opening chapters of Thucydides for example, ought equally to be discarded.
In the case of written transmission it remains to inquire whether the author reproduced his source without altering it. This inquiry forms part of the critical investigation of the sources,[164] so far as it can be pursued by a comparison of texts. But when the source has disappeared we are reduced to internal criticism. We ask, first of all, whether the author can have had exact information, otherwise his statement is valueless. We next put to ourselves the general question: Was the author in the habit of altering his sources, and in what manner? And in regard to each separate second-hand statement we ask whether it has the appearance of being an exact reproduction or an arrangement. We judge by the form: when we meet with a passage whose style is out of harmony with the main body of the composition, we have before us a fragment of an earlier document; the more servile the reproduction the more valuable is the passage, for it can contain no exact information beyond what was already in the source.
VII. In spite of all these investigations, criticism never succeeds in determining the parentage of all the statements to the extent of finding out who it was that observed, or even recorded, each fact. In most cases the inquiry ends in leaving the statement anonymous.
We are thus confronted with a fact, observed we know not by whom nor how, recorded we know not when nor how. No other science accepts facts which come in such a condition, without possibility of verification, subject to incalculable chances of error. But history can turn them to account, because it does not, like the other sciences, need a supply of facts which are difficult to ascertain.
The notion of a fact, when we come to examine it precisely, reduces to an affirmative judgment having reference to external reality. The operations by which we arrive at such a judgment are more or less difficult, and the risk of error is greater or smaller according to the nature of the realities investigated and the degree of precision with which we wish to formulate them. Chemistry and biology need to discern facts of a delicate order, rapid movements, transient states, and to measure them in exact figures. History can work with facts of a much coarser kind, spread over a large extent of space or time, such as the existence of a custom, of a man, of a group, even of a people; and these facts may be roughly expressed in vague words conveying no idea of accurate measurement. With such easily observed facts as these to deal with, history can afford to be much less exacting with regard to the conditions of observation. The imperfection of the means of information is compensated by a natural faculty of being satisfied with information which can easily be obtained.
Documents supply little else besides ill-verified facts, subject to many risks of falsehood or error. But there are some facts in respect of which it is very difficult to lie or be mistaken. The last series of questions which the critic should ask is intended to distinguish, in the mass of alleged facts, those which by their nature are little subject to the risk of alteration, and which are therefore very probably correct. We know what, in general, are the classes of facts which enjoy this privilege; we are thus enabled to draw up a list of questions for general use, and in applying them to any particular case we ask whether the fact in question comes under any of the heads specified in advance.
(1) The fact is of a nature to render falsehood improbable. A man lies in order to produce an impression, and has no motive to lie in a case where he believes that the false impression would be of no use, or that the falsehood would be ineffectual. In order to determine whether the author was in such a situation there are several questions to be asked.
(a) Is the fact stated manifestly prejudicial to the effect which the author wished to produce? Does it run counter to the interest, the vanity, the sentiments, the literary tastes of the author and his group; or to the opinions which he made a point of not offending? In such a case there is a probability of good faith. But in the application of this criterion there is danger; it has often been wrongly used, and in two ways. One of these is to take for a confession what was meant for a boast, as the declaration of Charles IX. that he was responsible for the Massacre of St. Bartholomew. Or again, we trust without examination an Athenian who speaks ill of the Athenians, or a Protestant who accuses other Protestants. But it is quite possible the author's notions of his interest or honour were very different from ours;[165] or he may have wished to calumniate fellow-citizens who did not belong to his own party, or co-religionists who did not belong to his own sect. This criterion must therefore be restricted to cases where we know exactly what effect he wished to produce, and in what group he was mainly interested.
(b) Was the fact stated so obviously known to the public that the author, even if tempted to falsehood, would have been restrained by the certainty of being detected? This is the case with facts which are easy to verify, which are not remote in point of time or space, which apply to a wide area or a long period, especially if the public had any interest in verifying them. But the fear of detection is only an intermittent check, opposed by interest whenever the author has any motive for deceiving. It acts unequally on different minds—strongly on men of culture and self-control who understand their public, feebly in barbarous ages and on passionate men.[166] This criterion, therefore, is to be restricted to cases where we know what idea the author had of his readers, and whether he was dispassionate enough to keep them in mind.
(c) Was the fact stated indifferent to the author, so that he had no temptation to misrepresent it? This is the case with facts of a general kind, usages, institutions, objects, persons, which the author mentions incidentally. A narrative, even a false one, cannot be composed exclusively of falsehoods; the author must localise his facts, and needs to surround them with a framework of truth. The facts which form this framework had no interest for him; at that time every one knew them. But for us they are instructive, and we can depend on them, for the author had no intention of deceiving us.