The Romans believed that the three tribes which composed the primitive populus were created by one act in close relation with the founding of the city.[9] For some unknown reason they were led to connect the myth of Titus Tatius, the eponymous hero of the Tities,[10] with the Quirinal,[11] and with the Sabines,[12] who were generally supposed to have occupied that hill.[13] Consequently some of their historians felt compelled to defer their account of the institution of the tribes till they had told of the union of the Sabines with the Romans, which at the same time gave them an opportunity to derive the names of the curiae from those of the Sabine women. Varro,[14] however, who protests against this derivation, refers the organization of the people in the three tribes to an earlier date, connecting it immediately with the founding of Rome. Though he affirmed that one tribe was named after Romulus, another after Titus Tatius, and the third, less positively, after an Etruscan Lucumo, Caeles Vibenna, who came to the aid of Romulus against Titus Tatius,[15] neither he nor any other ancient writer identified the Tities with the Sabines, whose quarter in the city was really unknown,[16] or the Luceres with an Etruscan settlement under Caeles whether in the Vicus Tuscus[17] or on the Caelian hill.[18] Since the Romans knew the tribe in no other relation than as a part of the state, they could not have thought of their city as consisting originally of a single tribe, to which a second and afterward a third were added, or that any one of these three tribes had ever been an independent community. These views are modern;[19] there is no trace of them in the ancient writers.[20] Even if it could be proved that they took this point of view, the question at issue would not thereby be settled; for no genuine tradition regarding the origin of the primitive tribes came down to the earliest annalists; the only possible knowledge they possessed on this point was deduced from the names of the tribes and from surviving institutions presumably connected with them in the period of their existence.[21] Under these circumstances modern speculations as to their independent character and diverse nationality seem absurd. The proper method of solving the problem is to test and to supplement the scant sources by a comparative study of the institution.
The low political vitality of the three primitive Roman tribes, as of the corresponding Greek phylae,[22] when we first meet with them in history, points to the artificiality of these groups—a condition indicated further both by their number and by their occurrence in other Italian states.[23] Far from being confined to Rome, the tripartite division of the community belonged to many Greek and to most Italian peoples,[24] and has entered largely into the organization of communities and nations the world over.[25] A derivation of tribus, Umbrian trifu, accepted by many scholars, connects it with the number three.[26] The wide use of this conventional number, and more particularly the regular recurrence of the same three Dorian tribes in many Dorian cities—as of the same four Ionic tribes in many Ionic cities[27]—and of the same three Latin (or Etruscan?) tribes in several old Latin cities, could not result from chance combinations in all these places, but point unmistakably to the systematic imitation of a common pattern. That pattern must be ultimately sought in the pre-urban populus, ἔθνος, folk. If we assume that before the rise of city-states the Ionian folk was organized in four tribes (phylae) and the Dorian and Latin folks in three tribes, we shall have a condition such as will satisfactorily explain the tribal organization of the city-states which grew up within the areas occupied by these three folks respectively. The thirty votes of the Latins may be best explained by assuming a division of their populus into three tribes, subdivided each into ten groups corresponding to the Roman curiae. Whereas in Umbria the decay of the pre-urban populus allowed its tribes to become independent,[28] in Latium a development in that direction was prevented by the rise of city-states, which completely overshadowed the preëxisting organization.
The Italian city-state grew not from a tribe or a combination of tribes, but from the pagus,[29] “canton,” a district of the pre-urban populus with definite consecrated boundaries,[30] usually centering in an oppidum—a place of defence and refuge.[31] In the beginning the latter enjoyed no superior right over the territory in which it was situated.[32] A pagus became a populus at the point of time when it asserted its political independence of the folk. The new state organized itself in tribes and curiae after the pattern of the folk. In the main this arrangement was artificial, yet it must have taken some account of existing ties of blood.[33] At the same time the oppidum became an urbs[34]—a city, the seat of government of the new populus. Thus arose the city-state. In the case of Rome several oppida with parts of their respective pagi[35] were merged in one urbs—that known as the city of the four regions.[36] Urbs and ager excluded each other, just as the oppidani contrasted with the pagani;[37] but both were included in the populus.
Most ancient writers represent the three tribes as primarily local,[38] and the members as landowners from the founding of the city.[39] Although their view may be a mere inference from the character of the so-called Servian tribes, the continuity of name from the earlier to the later institution points to some degree of similarity between them. It can be easily understood, too, how in time the personal feature might have so overcome the local as to make the old tribes appear to be based on birth in contrast with the territorial aspect of the new.[40]
It was probably on the institution of the later tribes that the earlier were dissolved. They left their names to the three double centuries of patrician knights.[41] Their number appears also as a factor in the number of curiae, of senators, and of members of the great sacerdotal colleges. Other survivals may be found in the name “tribunus,” in the tribuni militum, the tribuni celerum,[42] the ludus Troiae,[43] and less certainly in the Sodales Titii.[44]
III. The Curiae
The curia as well as the tribe was a common Italian institution. We know that it belonged to the Etruscans,[45] the Latins,[46] and several other peoples of Italy.[47] There were ten curiae to the tribe, making thirty in all.[48] The association was composed, not of gentes as many have imagined, but of families.[49] For the performance of its social and religious functions it had a house of assembly, also called curia,[50] in which the members—curiales—gathered for religious festivals. The place of meeting was a part of an edifice belonging to the collective curiae. In historical time there were two such buildings—the Curiae Veteres[51] on the northeast slope of the Palatine near the Arch of Constantine, containing seven curial meeting-places, and the Novae Curiae[52] near the Compitum Fabricium, containing the others. Their deities were Juno[53] and Tellus;[54] and their chief festivals were the Fornacalia and the Fordicidia.[55] As the worship was public, the expense was paid by the state.[56] At the head of the curia stood the curio—who in historical time was merely a priest[57]—assisted in his religious functions by his wife and children,[58] by a lictor[59] and a flamen.[60] The fact that the curio had these officials proves that he was originally a magistrate.[61] One of the curiones the people elected curio maximus to exercise general supervision over the worship and festivals of the association.[62]
Another function of the curiae was political. The grown male members, meeting in the comitium, constituted the earliest assembly organized in voting divisions—the comitia curiata—in which each curia cast a single vote.[63] Religious and political functions the curia continued to exercise far down into historical time; and for that reason they have never been doubted by the moderns. For the primitive period Dionysius[64] ascribes to them military functions as well. His idea is that the three original tribes furnished military divisions each under a tribune, and the curiae as subdivisions of the tribe furnished companies, commanded each by a curio chosen for his valor.[65] Doubtless the writer fairly describes the military system which Rome employed before the introduction of the phalanx,[66] and which corresponds closely with the system prevalent among the early Greeks,[67] Germans,[68] and other European peoples.[69] The military organization was everywhere a parallel of the civil. The Roman army, however, was by no means identical with the curiate assembly, for many belonged to the tribes and the curiae who for various reasons were exempt from military service.[70]
It is probable, too, that the curiae, as well as the tribes,[71] were territorial divisions. Not only have we the authority of Dionysius[72] that each curia occupied a district of the state, but also two of the seven known curial names—Foriensis and Veliensis[73]—are local. Though the two mentioned refer to places within the city, the country people were also included in the associations.[74]
Since Niebuhr the opinion has generally prevailed that the curia was composed of gentes. A passage which at first glance seems to have a bearing on the question is Dion. Hal. ii. 7. 4: “Romulus divided the curiae into decades, each commanded by a leader, who in the language of the country is called decurion.”[75] The word decurion proves, however, that in speaking of decades Dionysius is thinking of the military divisions called decuriae, each commanded by a decurion. In historical times the troop of cavalry—turma—was divided into three decuriae of ten each, as the word itself indicates. There were accordingly three decurions to the turma, and ten turmae ordinarily went with the legion.[76] From Varro[77] we learn that the three primitive tribes furnished turmae and decuriae of cavalry, the decuriae commanded by decurions. Dionysius accordingly refers to military companies—either to the well known decuriae of cavalry or to corresponding companies of footmen which probably existed before the adoption of the phalanx.[78] Had he meant gentes, he would have used the corresponding Greek word γένη. Niebuhr[79] inferred from this passage that each curia was divided into ten gentes, making three hundred gentes for the entire state; but a careful interpretation shows that no reference to the gentes is intended. We cannot infer therefore from this citation that the curia was divided into gentes.