The first step in breaking ground upon this almost impracticable subject, is—to show the student a true map of the field in which his labours are to lie. Most people have a vague preconception, peopling the fancy with innumerable shadows, of some vast wilderness or Bilidulgerid of trackless time, over which are strewed the wrecks of events without order, and persons without limit. Omne ignotum, says Tacitus, pro magnifico; that is, everything which lies amongst the shades and darkness of the indefinite, and everything which is in the last degree confused, seems infinite. But the gloom of uncertainty seems far greater than it really is.

One short distribution and circumscription of historical ages will soon place matters in a more hopeful aspect. Fabulous history ceases, and authentic history commences, just three-quarters of a millennium before Jesus Christ; that is, just 750 years. Let us call this space of time, viz., the whole interval from the year 750 b.c. up to the Incarnation of Christ, the first chamber of history. I do not mean that precisely 750 years before our Saviour's birth, fabulous and mythological history started like some guilty thing at the sound of a cock-crowing, and vanished as with the sound of harpies' wings. It vanished as the natural darkness of night vanishes. A stealthy twilight first began to divide and give shape to the formless shadows: what previously had been one blank mass of darkness began to break into separate forms: outlines became perceptible, groups of figures started forward into relief; chaos began to shape and organize its gloomy masses. Next, and by degrees, came on the earliest dawn. This ripened imperceptibly into a rosy aurora that gave notice of some mightier power approaching. And at length, but not until the age of Cyrus, five centuries and a half before Christ, precisely one century later, the golden daylight of authentic history sprang above the horizon and was finally established. Since that time, whatever want of light we may have to lament is due to the loss of records, not to their original absence; due to the victorious destructions of time, not[20] to the error of the human mind confounding the provinces of Fable and of History.

Let the first chamber of history therefore be that which stretches from the year 750 b.c. to the era of His Incarnation. I say 750 for the present, because it would be quite idle, in dealing with intervals of time so vast, to take notice of any little excess or defect by which the actual period differed from the ideal; strictly speaking, the period of authentic history commences sixteen or seventeen years earlier. But for the present let us say in round numbers that this period commenced 750 years b.c. And let the first chamber of history be of that duration.

B. Next let us take an equal space after Christ. This will be the second chamber of history. Starting from the birth of our Saviour, it will terminate in the middle of the eighth century, or in the early years of Charlemagne. These surely are most remarkable eras.

C. Then passing for the present without explanation to the year 1100 for the first Crusade, let us there fix one foot of our 'golden compasses,' and with the other mark off an equal period of 750 years. This carries us up nearly to the reign of George III, of England. And this will be the third great chamber of history.

D. Fourthly, there will now remain a period just equal to one-half of such a chamber, viz.: 350 years between Charlemagne's cradle and the first Crusade, the terminal era of the second chamber and the inaugural era of the third. This we will call the ante-chamber of No. 3.

Now, upon reviewing these chambers and antechambers, the first important remark for the student is, that the second chamber is nearly empty of all incidents. Take away the migrations and invasions of the several Northern nations who overran the Western Empire, broke it up, and laid the foundations of the great nations of Christendom—England, France, Spain—and take away the rise of Mahommedanism, and there would remain scarcely anything memorable.

From all this we draw the following inference: that memory is, in certain cases, connected with great effort, in others, with no effort at all. Of one class we may say, that the facts absolutely deposit themselves in the memory; they settle in our memories as a sediment or deposition from a liquor settles in a glass; of another we may say that the facts cannot maintain their place in the memory without continued exertion, and with something like violence to natural tendencies. Now, beyond all other facts, the facts of dates are the most severely of this latter class. Oftentimes the very actions or sufferings of a man, empire, army, are hard to be remembered because they are non-significant, non-characteristic: they belong by no more natural or intellectual right to that man, empire, army, than to any other man, empire, army. We remember, for instance, the simple diplomacy of Greece, when she summoned all States to the grand duty of exterminating the barbarian from her limits, and throwing back the tides of barbarism within its natural limits; for this appealed to what was noblest in human nature. We forget the elaborate intrigues which preceded the Peloponnesian war, for these appealed only to vulgar and ordinary motives of self-aggrandisement. We remember the trumpet voice which summoned Christendom to deliver Christ's sepulchre from Pagan insults, for that was the great romance of religious sentiment. But we forget the treaties by which this or that Crusading king delivered his army from Mahometan victors, because these proceeded on the common principles of fear and self-interest; principles having no peculiar relation to those from which the Crusades had arisen.

Now, if even actions themselves are easily dropped from the memory, because they stand in no logical relation to the central interest concerned, how much more and how universally must dates be liable to oblivion—dates which really have no more discoverable connection with any name of man or place or event, than the letters or syllables of that name have with the great cause or principles with which it may happen to have been associated. Why should Themistocles or Aristides have flourished 500 b.c., rather than 250, 120, or any other number of years? No conceivable relation—hardly so much as any fanciful relation—can be established between the man and his era. And in this one (to all appearance insuperable) difficulty, in this absolute defect of all connection between the two objects that are to be linked together in the memory, lies the startling task of Chronology. Chronology is required to chain together—and so that one shall inevitably recall the other—a name and an era which with regard to each other are like two clouds, aerial, insulated, mutually repulsive, and throwing out no points for grappling or locking on, neither offering any natural indications of interconnection, nor apparently by art, contrivance,[21] or fiction, susceptible of any.

II. Jewish as compared with other records.—Let us open our review with the annals of Judea; and for two reasons: first, because in the order of time it was the inaugural chapter, so that the order of our rehearsal does but conform to the order of the facts; secondly, because on another principle of arrangement, viz., its relation to the capital interests of human nature, it stands first in another sense by a degree which cannot be measured.