When was this liquefaction of the blood of St. Januarius first seen by men? It is not easy to answer the question. Some Neapolitan writers have maintained that it occurred probably on the very day when the remains of the sainted bishop were first solemnly transferred to Naples. For then, naturally and as a matter of course, the vials of the blood must have been brought into close proximity with the relics of the head. And this proximity, now intentionally brought about at each exposition, seems to be ordinarily the necessary and sufficient condition for the occurrence of the liquefaction. Others, however, prefer to be guided by positive historical evidence, and have come to a different conclusion. There is in existence a life of the saint written in or near Naples, about the year 920. It combines historical accounts and later legends, and evidently omits nothing which the writer thought would promote veneration toward the saint. It is diffuse on the subject of miracles. There is also in existence a panegyric of the saint, written perhaps half a century earlier still. No mention whatever is made in either of them of this Liquefaction. We may, therefore, conclude that in the year 920 it was not known. Four hundred and fifty years later, it was known, and had been known so long as to be reputed of ancient standing. About 1380, Lupus dello Specchio wrote the life of St. Peregrine of Scotland, who came to Naples about the year 1100, and died there probably about 1130. In that life it is stated that St. Peregrine came to witness this celebrated and continual miracle--_quotidianum et insigne miraculum_. Now, it may well be that the author, writing about two hundred and fifty years after the death of St. Peregrine, had access to documents and evidences clearly establishing this fact, although such documents do not now exist, five hundred years later, or, at least, have not as yet been exhumed from some dusty library, where they may be lying unnoticed. Or, on the contrary, it may possibly be that in 1380 Lupus believed that the miracle, so regular in its occurrence at his day, had regularly occurred since the year of the translation of the body, and took it as a matter of course that St. Peregrine had witnessed it; and so put that down among the facts of his life. But this, even though a harsh criticism, and one we think unwarranted, if not excluded, by the words of the life, would imply at least that, in 1380, the Liquefaction had occurred for so long a time that men had ordinarily lost the memory of its commencement.