But in the course of the period within which the Numan calendar was drawn up, this community of patrician burghers began to suffer certain changes. A population of "outsiders," as in so many Greek cities, had gained admittance to the site of Rome, though not into its political and religious organism.[471] So solid a city, in such an important position, was sure to attract such settlers, whether from the Latins dwelling about it, or from the Etruscans on the north, or the Greek cities along the coast southwards and in Sicily. The Latins were, of course, of the same stock as the Romans, and already in some loose political relation to them; and as each Latin city was open, like Rome, to Greek and Etruscan influences, we should probably see in Latium an indirect channel of communication between those peoples and Rome, to be reckoned in addition to the direct and obvious one. As Dr. J. B. Carter has well said,[472] "the Latins, becoming rapidly inferior to Rome, were enabled to do her at least this service, that of absorbing the foreign influences which came, and in certain cases of Latinising them, and thus transmitting them to Rome in a more or less assimilated condition." As Dr. Carter has been the first to explain the arrival of these new religious influences to English readers, I shall in what follows closely follow his footsteps. They indicate and also reflect a change from agricultural economy and habits to a society interested in trade and travel: I say interested, because we cannot be quite sure how far the old Romans engaged in such pursuits themselves, as well as admitting from outside those who did, with their worships. They indicate also the growth of an industrial population, organised in gilds, as in the Middle Ages; here beyond doubt the workers were mainly of native birth. Lastly, they indicate an advance in military efficiency and, as a result of this military progress, some change in the relation of Rome to her fellow-communities of Latium.

Perhaps the first of these new deities to arrive was the famous Hercules Victor or Invictus of the ara maxima in the Forum Boarium, who continued for centuries to accept the tithes of the booty of generals and the profits of successful merchants. Virgil in the eighth Aeneid[473] makes Evander show his guest this altar and the celebration of its festival, and tell him the tale of Cacus and the oxen and the cave on the Aventine hard by; the poet, like every one else until the last few years, believed the cult to be primeval and Roman. But one of the many gains for the history of Roman religion which have recently been secured—even since the publication of my Roman Festivals—is the certainty that the Italian Hercules is really the Greek Heracles acclimatised in the sister peninsula, and that the cult of the ara maxima, though that altar was inside the sacred boundary of the pomoerium, was not native in Rome.[474] It seems, however, almost certain that it did not come direct from any part of Hellas, though its position, close to the Tiber and its landing-place, might naturally lead us to think so. It is almost impossible to believe that Heracles would have been allowed inside the pomoerium, had he been introduced by foreigners in the strict sense of the word. No doubt much has yet to be learnt about Hercules in Italy; but recent painstaking researches have made it possible for us to acquiesce in the belief that this Hercules of the ara came from a Latin city,—from that Tibur which by tradition was of Greek origin—"Tibur Argeo positum colono,"—and which, like its neighbour Praeneste, was curiously receptive of foreign influence.[475] It is believed that the Greek traders from Campania and Magna Graecia made their way northwards through Latium, and thus eventually reached Rome with the deity whom they seem to have always carried with them. He was, in the words of Dr. Carter,[476] a deity of whom, by the contagion of commerce, the Romans already felt a great need, a god of great power from whom came success in the practical undertakings of life; and it was quite natural that his shrine should be in the busy cattle-market of the city, if we remember that the wealth of the early Romans, pecunia as they called it, mainly consisted in sheep and oxen. As Heracles in various forms was to be met with all over the Mediterranean coasts, it would indeed be strange if he were not found in the growing city commanding the central water-way of Italy; and his appearance there may be said to have put Rome in touch with the Mediterranean business of that day. There he was destined to remain, with all the honour of an oldest cult, though other cults of the same god came in later, and were established quite close to him; and though never a State deity of much importance, he exercised a wholesome influence in matters of trade, as the god who sanctioned your oath, and who accepted the tithe of your gain which you had vowed at the outset of an enterprise.[477]

In the same period, though the traditional date of their temple is later, came the Twin Brethren, Castor and Pollux, and found their way, like Hercules, into the city within the pomoerium. The famous temple of Castor (before whom his brother gradually gave way) was at the end of the Forum under the Palatine, close to the fountain of Juturna, where the Twins watered their horses after the battle of Lake Regillus; and there the beautiful remains of the latest reconstruction of it still stand.[478] This position alone should make us feel confident that the cult did not come direct from Greek sources; and it had its origin, perhaps, in the period when Rome was in close relation with Latin cities, which themselves had been gradually absorbing the cults and products of the Greeks of Campania. There is a strong probability that it came from Tusculum, with which the legend of the Regillus battle is closely connected, and where the cult had beyond doubt taken strong root.[479] Like the Hercules of the ara maxima, the Twins were no doubt brought by the course of trade, which was continually pushing up from the south; for they too were favourites of the merchant adventurer, and throughout Hellas were the special protectors of the seafarer. Their connection with horses is well known, and not as yet satisfactorily explained in its Roman aspect; but Dr. J. B. Carter thinks that they first became prominent in Greece when the Homeric use of chariots was abandoned for a primitive kind of cavalry, and that "the Castor-cult moved steadily northward (from Magna Graecia), carried, as it were, on horseback," and that when it reached Rome it became connected with the reorganisation of the cavalry. This seems to be almost pure guess-work, and, attractive as it is, I fear we cannot put much faith in it.[480] The position in the Forum, and the well-known connection of both twins with oaths,[481] seem to me rather to suggest a more natural origin in trade. I would suggest that the equine character of the cult in Latium was secondary, and that the connection of the temple and cult with the Roman cavalry was a natural result, but not a primary feature, of its introduction. I should be inclined to look on it as coming in with the building of the temple, which was probably of later origin than the original introduction of the cult.

Some time after the calendar was drawn up, a deity was established on the Aventine, i.e. not within the pomoerium, whose arrival marks a development in the organisation of handicraft. We cannot indeed prove that the settlement of Minerva on the Aventine took place so early, but we have strong grounds for the conclusion.[482] This temple was in historical times the religious centre of trade-gilds; and these gilds were by universal Roman tradition ascribed to Numa as founder, which simply means that they were among the oldest institutions of the City-state. As Minerva does not appear in the calendar, had no flamen, and therefore must have been altogether outside the original patrician religious system, the natural inference is that the temple was founded, like the shrines of Hercules and the Twin Brethren, towards the end of the period we are dealing with, and was from the first the centre of the gilds. Of those mentioned by Plutarch in his life of Numa (ch. 17), we know that the following gilds belonged to Minerva: tibicines, fabri (carpenters?), fullones, sutores; and it is a reasonable guess that the others, coriarii, fabri aerarii, and aurifices, were also under her protection. These trades, as Waltzing remarks in his great work on Roman gilds,[483] are all in keeping with the rudimentary civilisation of primitive Rome; they are those which were first carried on outside of the family. Workers in iron are not among them; bronze is still the common metal.

Now of course we must not go so far as to assume that none of these trades existed before the cult of Minerva came to Rome; but from her close association with them all through Roman history, and from the fact that the Romans were originally an agricultural folk, as the calendar shows, with a simple economy and simple needs, it is legitimate to connect the arrival of the goddess with the growth of town life and the demand for articles once made in rude fashion chiefly on the farms, and with a period of improvement in manufacture, and the use of better materials and better methods. Whence, then, did these improvements come? This is only another way of asking the question, Whence did Minerva come?

By the common consent of investigators she came from the semi-Latin town of Falerii in southern Etruria, where these arts were practised by Etruscans, or those who had learnt of Etruscans.[484] Her name is Italian, not Etruscan;[485] she was an old Italian deity taken over by the invading Etruscans from the peoples whose land they occupied. But while in the hands of Etruscans she had adopted Greek characteristics, especially those of Athene, the patroness of arts and crafts. She soon, indeed, appeared with some of the character of Athene Polias, as we shall see at the end of this lecture; but her real importance, far down into the period of the Empire, was in the temple on the Aventine, and in connection with the crafts. The dedication day of the temple was March 19, which was known, as we learn on the best authority, also as artificum dies.[486]

There was another famous temple on the Aventine which by universal consent is attributed to the same period as that of Minerva. Diana does not appear in the calendar, and had no flamen; Roman tradition ascribed her arrival to Servius Tullius, and we shall not be far wrong if we place it at or towards the end of the age of the kingship. The temple was celebrated as containing an ancient statue of Diana, the oldest or almost the oldest representation of a deity in human form known at Rome, which was a copy of a rude image of Artemis at Massilia, of the type of the famous ξὁανον of the Ephesian Artemis.[487] It also contained a lex templi in Greek characters, and a treaty or charter of a federation of Latin cities with Rome as their head, which was seen by Dionysius of Halicarnassus when in Rome in the time of Augustus.[488]

The explanation of the arrival of Diana is simple. The dies natalis of the temple is the same as that of the famous shrine of the same goddess at Aricia—the Ides of August.[489] Aricia was at this time the centre of a league of cities including Tusculum and Tibur, with both of which, as we have just seen, Rome was closely connected at this time; a league which is generally supposed to have superseded that of Alba, marking some revolution in Latium consequent on the fall of Alba.[490] Diana was a wood-spirit, a tree-spirit, as Dr. Frazer has taught us, with some relation to the moon and to the life of women; of late she has become familiar to every one, not as she was known later, in the disguise of Artemis, but as the deity of that shrine—"pinguis et placabilis ara Dianae"—of which the priest was the Rex Nemorensis: he who "slew the slayer and shall himself be slain."[491] But in those days it was only the fact that she was the chief local deity of Aricia, the leading city of the new league, which brought her suddenly into notice. When the strategic position of Rome gave her in turn the lead in Latium, Diana passed on from Aricia to the Tiber, entered on a new life, and eventually took over the attributes of Artemis, with whom she had much in common. The Diana whom we know in Roman literature is really Artemis; but Diana of the Aventine, when she first arrived there, was the wood-spirit of Aricia, and her temple was an outward sign of Rome's new position in Latium: it was built by the chiefs of the Latin cities in conjunction with Rome, and is described by Varro as "commune Latinorum Dianae templum."[492] It was appropriately placed on the only Roman hill which was then still covered with wood, and was outside the pomoerium.

There was one other goddess, a Latin one, who was traditionally associated with this period, and especially with king Servius Tullius—Fortuna, or Fors Fortuna; she does not appear in the calendar, had no flamen, and must have been introduced from outside. But it was long before Fortuna became of any real importance in Rome, and I shall leave her out of account here. She had two homes of renown in Latium, at Antium and Praeneste, and was in each connected with a kind of oracle, which seems to have been specially resorted to by women before and after childbirth. She was also very probably a deity of other kinds of fertility; and in course of time she took on the characteristics of the Greek Tyche, and became a favourite deity of good luck.[493]

Let us pause for one moment to reflect on the character of these new deities of whom I have been speaking: Hercules, Castor, Minerva, Diana. It must be confessed that, as compared with the great deities of the calendar, they are uninteresting; with the exception, perhaps, of Hercules, they do not seem to have any real religious significance. They are local deities brought in from outside, and have no root in the mind of the Roman people as we have so far been studying it. They seem to indicate the growth of a population in which the true old Roman religious instinct was absent; they represent commerce, business, handicraft, or politics, pursuits in which the old Roman and Latin farmers were not directly interested; they were suffered to be in Rome because the new population and the new interests must of necessity have their own worships, but they were not taken into the heart and mind of the people. So at least it seems to us, after we have been examining the development of the native religious plant from its root upwards. But we must remember that of that new population, its life and its needs, we know hardly anything, and it would not be safe to assume that the conception of Minerva had no influence on the conscience of the artisan, or that of Hercules no power of binding the trader to honest dealing and respect for his oath. As for Diana, though, as Dr. Carter says, she had been introduced "as part of a diplomatic game, not because Rome felt any religious need of her," the fact that the Latin treaty was kept in her temple has a certain moral as well as political significance which ought not to be overlooked. It is impossible to put ourselves mentally in the position of the men who brought these cults to Rome, or of the Romans who granted them admittance; but we shall be on the safe side if we imagine the former at least to have had a conviction that their dealings at Rome would not prosper unless they were carried out with the blessing of their own gods.