The first and leading fact is that Janus was the first deity to be addressed in all prayers and invocations; of this we have abundant evidence, as also of the corresponding fact that Vesta came last.[248] Secondly, we know that he was the object of worship on the Kalends of January, and probably of every month, and that the sacrificing priest was in this case the rex sacrorum. Thirdly, we know that he had no temple until the year 260 b.c., but that he was associated with the famous gateway at the north-east end of the Forum—not a gate in the wall, but a symbolic entrance to the heart of the city, as the round temple of Vesta at the opposite end, with its eternal fire, was symbolic of the common life of the community. Fourthly, we know a few cult-titles of Janus, among them Clusius (or Clusivius), and Patulcius, in which the connection with gates is obvious; Junonius, which may have originated in the fact that Juno also was worshipped on the Kalends; Matutinus, which seems to be a late reference to the dawn as the opening or gate of the day, and Quirinus, which last is also almost certainly of late origin. Clusius and Patulcius are genuine old titles, if the text of the Salian hymn is rightly interpreted; so too is another, Curiatius, for it was used of the god only as residing in an ancient gateway near the Subura called the tigillum sororium.[249] These are all the most important facts we have to go upon; the double head of Janus on the earliest Roman as is of uncertain origin, and Wissowa seems to have conclusively shown that this representation was not admitted to the gate called Janus Geminus until towards the close of the republican period.[250] The connection of the god with the fortress on the hill across the Tiber, which still bears his name, admits of no quite satisfactory explanation.
Now if we recall the fact that the entrance to the house and the entrance to a city were points of great moment, and the cause of constant anxiety to the early Italian mind, we may naturally infer that they would be in the care of some particular numen, and that his worship would be in the care of the head of the family or community—in the case of the city, in the care of the rex, whose duties of this kind were afterwards taken over by the priest called rex sacrorum. The fact that the word for an entrance was ianus confirms this conjecture; Janus was perhaps the spirit guarding the entrance to the real wall of the earliest city, but when the city was enlarged in the age from which the calendar dates, a symbolic gateway was set up where you entered the forum from the direction of Latium, answering to the symbolic hearth in the aedes Vestae, and this very naturally took the name of the deity associated with entrances. Two other iani probably existed in the forum, and the name was later on transferred as a substantive to similar objects in Roman colonies, while a feminine form, ianua, came to be used for ordinary house entrances.[251] Whether there ever was a cult of the god at the real gateway of a city we do not know; there was none at the symbolic gateway of Rome, which was in no sense a temple. But the idea of entrance stuck to the old spirit of the doorway long after the reconstruction of the city, and the rex now sacrifices to him on the entrance-day of each month, and more particularly on the entrance-day of the month which bears his name and is the beginning of the natural year after the winter solstice. This is the best account to be had of the original Janus,[252] a deity, let it be remembered, of a simple agricultural and warlike people, without literature or philosophy. But it is not difficult to see how, when philosophy and literature did at last come in a second-hand form to this people, they might well have overlaid with cobwebs of story and speculation a deity for whom they had no longer any real use, who was best known to them by the mysterious double-head on the as and the gateway, and for whom they could find no conclusive parallel among the gods of Greece.
Next in order of invocation to Janus came Jupiter, and his priest, the Flamen Dialis, was likewise the second in rank, according to ancient rule, after the rex sacrorum. Unlike Janus, Jupiter (to use the spelling familiar in England) was at all times a great power for the Roman people, and one who could be all the more valued because he was intelligible. No one doubted then, and no one doubts now, that he was the god of the light and of heaven, Diovis pater, or rather perhaps the heaven itself[253] with all its manifestations of rain and thunder, of blessing and damage to the works of man; the common inheritance of the Italian peoples, dwelling and worshipped in their woods and on their hills; and, as we know now, also the common inheritance of all Aryan stocks, the "European Sky-god," as Mr. A. B. Cook has traced him with learning and ingenuity from the Euxine to Britain.[254]
Jupiter must have had a long and important history in Latium before the era of the Roman City-state; Dr. Frazer has seen this, and set it forth in his lectures on the early history of the kingship, though basing his conclusions on evidence much of which will not bear a close examination.[255] The one substantial proof of it lies in the unique and truly extraordinary character of the taboos placed on his flamen, and to some extent on the flamen's wife, by the Roman ius divinum. Even if we suppose that some of these may have been later inventions of an ecclesiastical college like the pontifices (and this is hardly probable), many of them are obviously of remote antiquity, and can only have originated at a time when the magical power of the man responsible for the conduct of Jupiter was so precious that it had to be safeguarded in these many curious ways. I have already suggested that the scene of the early paramount importance of Jupiter and his flamen, in that age perhaps a king of some kind, was Alba Longa, which by universal tradition was the leading city of Latium before Rome rose to importance, and where the sky-god was worshipped on his holy mountain as the religious centre of Latium from the earliest times. I have also suggested that when the new warlike city on the Tiber took the place of Alba, the worship was transferred thither, but lost its strength in the process, and that the flamen was little more than a survival even in the most primitive period of what we may call for the moment Roman history. This can be accounted for by the fact that the traditions of primitive Rome were connected much more closely with Mars than with Jupiter. Not till Etruscan kings founded the great temple on the Capitol, which was to endure throughout all later ages of Roman dominion, did the sky-god become the supreme guardian deity of his people, under the titles of Optimus Maximus, the best and greatest of all her deities.
But Jupiter was there; and we know certain facts of his cult which give us a pretty clear idea of what the Romans of the pre-Etruscan period thought about him. In the calendar all Ides belonged to him, were feriae Iovis;[256] he seems to be the source of light, whether of sun or moon, for neither of which the Romans had any special divinity; in the hymn of the Salii he is addressed as Lucetius, the giver or source of light. The festivals of the vintage belonged to him, since the production of wine specially needed the aid of sun and light, and his flamen was employed in the cult on these occasions.[257] When rain was sorely needed, the aid of the sky-god was sought under the cult-title Elicius, and as Fulgur or Summanus[258] he was the Power who sent the lightning by day and by night. The ideas thus reflected in the Roman cult were common to all Italian peoples of the same stock; everywhere we find him worshipped on the summits of hills, and in woods of oak, ilex, or beech,[259] where nothing but the trees he loved intervened between the heaven and the earth.
His oldest cult at Rome was on the Capitoline hill, but at all times quite distinct from that which became so famous afterwards; he was known here as Feretrius, a cult-title of which the meaning is uncertain,[260] and here, so far as we can guess, there must have been an ancient oak regarded either as the dwelling of the numen or as the numen himself, upon which Romulus is said to have hung the spolia opima taken from the king of the Caeninenses;[261] here we may see the earliest trace of the triumphal procession that was to be. Doubtless an ara was here from the first, and then followed a tiny temple, only fifteen feet wide as Dionysius describes it from personal knowledge in the time of Augustus,[262] who restored it. There was no image of the god, but in the temple was kept a silex, probably a stone celt believed to have been a thunderbolt;[263] this stone the Fetiales took with them on their official journeys, and used it in the oath, per Iovem lapidem, with which they ratified their treaties. As the Romans thought of Jupiter, not as a personal deity living in the sky like Zeus, but rather as the heaven itself, so they could think of him as immanent in this stone, Iuppiter lapis. And the use of the flint in treaty-making suggests another aspect of the god, which he retained in one way or another throughout Roman history; it is his sanction that is called in to the aid of moral and legal obligations, resulting from treaties, oaths, and contracts such as that of marriage. As Dius Fidius he was invoked in the common Roman oath medius fidius; as Farreus (if this were an old cult-title) he gave his sanction to the solemn contract entered into in the ancient form of marriage by confarreatio, where his flamen had to be present, and where in all probability the cake of far was eaten as a kind of sacrament by the parties to the covenant.[264] In much of this it is tempting to see, as we can see nowhere else in the Roman religion, faint traces of a feeling about the heaven-god brought from a remote pastoral life under the open sky, where neither forest nor mountain intervened to shelter man from the great Presence;[265] and it is also tempting to think that there was here, even for Latins who had learnt to worship Jupiter under the form of stocks and stones in the land of their final settlement, some chance of the development of a deity "making for righteousness."
Third and fourth in the order of invocation came Mars and Quirinus, and the same order held good for their flamines. These two priests may have been subject to some of the taboos which restricted the Flamen Dialis;[266] they too, that is, may have been to some extent precious, and have been endowed in a lost period of history with magical powers; but if so, the memory and importance of such disabilities was rapidly forgotten in the City-state, and they were early allowed to fill civil offices, a privilege which the Dialis did not attain till the second century b.c.[267] Of the sacrificial duties of the Martialis we know nothing for certain, and can get no help from him as to the ideas of the early Romans about their great deity Mars.
Mars is in some ways the most interesting of all the Roman deities; but except as the familiar war-god of Roman history he remains a somewhat doubtful conception. Like Jupiter and Janus he has attained to a real name; but of that name, which in various forms is still so often on our lips, no convincing account has ever been given. Comparative mythology used to be much occupied with him, and he has been compared with Indra, Apollo, Odin, and others. But as M. Reinach said, it is time to attend more closely to differences; and Mars seems to stand best by himself, as a genuine Italian religious conception. His name is found all over ancient Italy in various forms—Mavors, Mamers, Marmor, and as Cerfus Martius at Iguvium. His wild and warlike character, his association with the wolf and the spear, seem to suggest the struggle for existence that must have gone on among the tribes that pushed down into a peninsula of rugged mountain and dense forest, abounding with the wolves which are not yet wholly extinct there. Whether or no his antecedents are to be found in other lands, we shall not be far wrong in assuming that the Roman Mars was the product of life and experience in Italy, and Italy only.
There is an excellent general account of him in Roscher's article in his Lexicon, which, like that on Janus, has the advantage of being the result of a second elaborate study, free from the enticements of the comparative method. What we know for certain about his cult at Rome in early times can be very briefly stated. First, we have the striking fact that he is conspicuous, together with the Lares, in the carmen which has come down to us as sung by the Arval Brethren in their lustration of the cultivated land of the Roman city:[268] "Neve luerve Marmor sins incurrere in pleores, satur fu fere Mars!" One is naturally inclined to ask how this wild and warlike spirit can have anything to do with cultivation and crops. But there is no mistake; the connection is confirmed by the fact that he is also the chief object of invocation in the private lustratio of the farm, which Cato has preserved for us.[269] In each case the victims are the same, the suovetaurilia of ox, sheep, and pig, the farmer's most valuable property. Again, let us remember that the month which bears his name is that not only of the opening of the war season, but of the springing up of vegetation, and that the dances and singing of the Salii at this time may probably have been meant, like similar performances of savage peoples,[270] to frighten away evil demons from the precious cultivated land and its growing produce, and to call on the Power to wake to new life. The clue to the mystery is perhaps to be found in the cult-title Silvanus which we find in the prayer set down by Cato as proper for the protection of the cattle when they are on their summer pasture (in silva): "Marti Silvano in silva interdius in capita singula boum facito."[271] We know that wealth in early Italy consisted chiefly of sheep and cattle; we know that these were taken in the warm months, as they still are, into the forest (saltus) to feed;[272] and from this passage of Cato we know that Mars was there. It is only going one step farther if we conjecture that Mars, like Silvanus, who may have been an offshoot of his own being, was for the early settler never a peaceful inhabitant of the farm or the dwelling, but a spirit of the woodland of great importance for the cattle-owner, and of great importance, too, in all circumambulation of the boundaries which divided the woodland from the cultivated land.[273]
But with conjecture I deal on principle but sparingly. It is time to turn to the Mars of the City-state of Rome; and it is at once interesting to find that until the age of Augustus, who introduced a new form of Mars-worship, he had no temple within the walls, and even outside only two fana, one an altar in his own field the Campus Martius, the other a temple dedicated in 388 b.c. outside the Porta Capena. "He was always worshipped outside the city," says Dr. J. B. Carter in his Religion of Numa, "as a god who must be kept at a distance." Should we not rather say that the god was unwilling to come within those sacred boundaries encircling the works of man? So stated, we may see in this singular fact a reminiscence of the time when Mars was really the wild spirit of the "outland," where wolves and human enemies might be met with; he was perhaps in some sense a hostis, a stranger, like the many other deities originally strange to Rome who, until the second Punic war, were never allowed to settle within the sacred precincts.[274] In one sense, however, Mars was actually resident in the very heart of the city. In a sacrarium or chapel of the regia,[275] the ancient dwelling of the king, were kept the spears and shields which the Salii carried in their processions in March and October; and that the deity was believed to be there too must be inferred from the fact, if it be correctly stated by Servius, that the consul who was about to take the field entered the chapel and shook these spears and shields together, saying, "Mars vigila." I am, however, rather disposed to think that this practice belongs to a time when Mars was more distinctly recognised as a god of war, and when the weapons of the Salii were thought of rather as symbols of his activity than as objects in which he was immanent.[276]