Plutarch · Life of Numa Νομᾶς

Plutarch, Life of Numa 18.1–19.6: Numa's calendar and the origin of the Roman months

Numa estimates the gap between the lunar and solar years at eleven days and inserts every other year, after February, an intercalary month of twenty-two days. He also changes the order of the months, making January the first, though many say that January and February were added by Numa to a year of ten months. Plutarch explains the names of the months from Ares (Mars), Aphrodite, Maia, Hera (Juno), Julius Caesar, Augustus, Janus and the purification of February.

Sections 18.1–19.6 · 850 words · click a number to copy its link

ἥψατο δὲ καὶ τῆς περὶ τὸν οὐρανὸν πραγματείας οὔτε ἀκριβῶς οὔτε παντάπασιν ἀθεωρήτως. Ῥωμύλου γὰρ βασιλεύοντος ἀλόγως ἐχρῶντο τοῖς μησὶ καὶ ἀτάκτως, τοὺς μὲν οὐδὲ εἴκοσιν ἡμερῶν, τοὺς δὲ πέντε καὶ τριάκοντα, τοὺς δὲ πλειόνων λογιζόμενοι, τῆς δὲ γινομένης ἀνωμαλίας περὶ τὴν σελήνην καὶ τὸν ἥλιον ἔννοιαν οὐκ ἔχοντες, ἀλλʼ ἓν φυλάττοντες μόνον, ὅπως ἑξήκοντα καὶ τριακοσίων ἡμερῶν ὁ ἐνιαυτὸς ἔσται.

He applied himself, also, to the adjustment of the calendar, not with exactness, and yet not altogether without careful observation. For during the reign of Romulus, they had been irrational and irregular in their fixing of the months, reckoning some at less than twenty days, some at thirty-five, and some at more; they had no idea of the inequality in the annual motions of the sun and moon, but held to this principle only, that the year should consist of three hundred and sixty days.

Νομᾶς δὲ τὸ παράλλαγμα τῆς ἀνωμαλίας ἡμερῶν ἕνδεκα γίνεσθαι λογιζόμενος, ὡς τοῦ μὲν σεληνιακοῦ τριακοσίας πεντήκοντα τέσσαρας ἔχοντος ἡμέρας, τοῦ δὲ ἡλιακοῦ τριακοσίας ἑξήκοντα πέντε, τὰς ἕνδεκα ταύτας ἡμέρας διπλασιάζων ἐπήγαγε παρʼ ἐνιαυτὸν ἐπὶ τῷ Φεβρουαρίῳ μηνὶ τὸν ἐμβόλιμον, ὑπὸ Ῥωμαίων Μερκηδῖνον καλούμενον, εἴκοσι καὶ δυοῖν ἡμερῶν ὄντα.

But Numa, estimating the extent of the inequality at eleven days, since the lunar year had three hundred and fifty-four days, but the solar year three hundred and sixty-five, doubled these eleven days, and every other year inserted after the month of February the intercalary month called Mercedinus by the Romans, which consisted of twenty-two days.

καὶ τοῦτο μὲν αὐτῷ τὸ ἴαμα τῆς ἀνωμαλίας μειζόνων ἔμελλεν ἰαμάτων δεήσεσθαι.

μετεκίνησε δὲ καὶ τὴν τάξιν τῶν μηνῶν τὸν γάρ Μάρτιον πρῶτον ὄντα τρίτον ἔταξε, πρῶτον δὲ τὸν Ἰανουάριον, ὃς ἦν ἑνδέκατος ἐπὶ Ῥωμύλου, δωδέκατος δὲ καὶ τελευταῖος ὁ Φεβρουάριος, ᾧ νῦν δευτέρῳ χρῶνται. πολλοὶ δέ εἰσιν οἳ καὶ προστεθῆναι τούτους ὑπὸ Νομᾶ τοὺς μῆνας λέγουσι, τόν τε Ἰανουάριον καὶ τὸν Φεβρουάριον,

This correction of the inequality which he made was destined to require other and greater corrections in the future. He also changed the order of the months. March, which had been first, he made the third month, and January, which had been the eleventh under Romulus, he made the first month; February, which had been twelfth and last, thus became the second month, as now. But there are many who say that these months of January and February were added to the calendar by Numa,

ἐξ ἀρχῆς δὲ χρῆσθαι δέκα μόνον εἰς τὸν ἐνιαυτόν, ὡς ἔνιοι τῶν βαρβάρων τρισί, καὶ τῶν Ἑλλήνων Ἀρκάδες μὲν τέσσαρσιν, ἓξ δὲ Ἀκαρνᾶνες, Αἰγυπτίοις δὲ μηνιαῖος ἦν ὁ ἐνιαυτός, εἶτα τετράμηνος, ὥς φασι. διὸ καὶ νεωτάτην χώραν οἰκοῦντες ἀρχαιότατοι δοκοῦσιν εἶναι καὶ πλῆθος ἀμήχανον ἐτῶν ἐπὶ ταῖς γενεαλογίαις καταφέρουσιν, ἅτε δὴ τοὺς μῆνας εἰς ἐτῶν ἀριθμὸν τιθέμενοι.

and that at the outset the Romans had only ten months in their year, as some Barbarians have three, and as, among the Greeks, the Arcadians have four, and the Acarnanians six; the Aegyptian year had at first only a single month in it, afterwards four, as we are told. And therefore, though they inhabit a very recent country, they have the credit of being a very ancient people, and load their genealogies with a prodigious number of years, since they really count their months as so many years.

Ῥωμαῖοι δὲ ὅτι μὲν δέκα μῆνας εἰς τὸν ἐνιαυτὸν ἔταττον, οὐ δώδεκα, τεκμήριον ἡ τοῦ τελευταίου προσηγορία· δέκατον γάρ αὐτὸν ἄχρι νῦν καλοῦσιν ὅτι δὲ τὸν Μάρτιον πρῶτον, ἡ τάξις· τὸν γάρ ἀπʼ ἐκείνου πέμπτον ἐκάλουν πέμπτον ἕκτον δὲ τὸν ἕκτον καὶ τῶν ἄλλων ἑξῆς ὁμοίως ἕκαστον, ἐπεὶ τὸν Ἰανουάριον καὶ τὸν Φεβρουάριον πρὸ τοῦ Μαρτίου τιθεμένοις συνέβαινεν αὐτοῖς τὸν εἰρημένον μῆνα πέμπτον μὲν ὀνομάζειν, ἕβδομον δὲ ἀριθμεῖν.

That the Romans had at first only ten months in their year, and not twelve, is proved by the name of their last month; for they still call it December, or the tenth month. And that March used to be their first month, is proved by the sequence of months after it; for the fifth month after it used to be called Quintilis, the sixth Sextilis, and so on with the rest. Therefore, when they placed January and February before March, they were guilty of naming the above-mentioned month Quintilis, or fifth, but counting it seventh.

ἄλλως δὲ καὶ λόγον εἶχε τὸν Μάρτιον Ἄρει καθιερωμένον ὑπὸ τοῦ Ῥωμύλου πρῶτον ὀνομάζεσθαι· δεύτερον δὲ τὸν Ἀπρίλλιον, ἐπώνυμον ὄντα τῆς Ἀφροδίτης, ἐν ᾧ θύουσί τε τῇ θεῷ καὶ ταῖς καλάνδαις αἱ γυναῖκες ἐστεφανωμέναι μυρσίνῃ λούονται, τινὲς δὲ οὐ διὰ τὴν Ἀφροδίτην τὸν Ἀπρίλλιὸν φασιν, ἀλλʼ ὥσπερ ἔχει τοὔνομα ψιλόν, Ἀπρίλλιον κεκλῆσθαι τὸν μῆνα τῆς ἐαρινῆς ὥρας ἀκμαζούσης ἀνοίγοντα καὶ ἀνακαλύπτοντα τοὺς βλαστοὺς τῶν φυτῶν τοῦτο γὰρ ἡ γλῶττα σημαίνει.

And besides, it was reasonable that March, which is consecrate to Mars, should be put in the first place by Romulus, and April in the second place, since this month is named after Aphrodite. In it they sacrificed to this goddess, and on its first day the women bathe with myrtle garlands on their heads. Some, however, say that April, with its smooth p, cannot be derived from Aphrodite, with its rough ph, but that this month of high spring time is called April because it opens and discloses the buds and shoots in vegetation, this being the meaning of the word aperio.

τῶν δ’ ἐφεξῆς τὸν μὲν Μάϊον καλοῦσιν ἀπὸ Μαίας· Ἑρμῇ γὰρ ἀνιέρωται τὸν δὲ Ἰούνιον ἀπὸ τῆς Ἥρας. εἰσὶ δέ τινες οἱ τούτους ἡλικίας ἐπωνύμους εἶναι λέγοντες πρεσβυτέρας καὶ νεωτέρας· μαϊώρεις γὰρ οἱ πρεσβύτεροι παρʼ αὐτοῖς, ἰουνιώρεις δὲ οἱ νεώτεροι καλοῦνται, τῶν δὲ λοιπῶν ἕκαστον ἀπὸ τῆς τάξεως, ὥσπερ ἀριθμοῦντες, ὠνόμαζον πέμπτον, ἕκτον, ἕβδομον, ὄγδοον, ἔνατον, δέκατον·

The next month in order is called May, from Maia, the mother of Mercury, to whom it is sacred; and June is so named from Juno. There are some, however, who say that these months get their name from an age, older and younger; for majores is their name for the elder, juniores for the younger men. Each of the remaining months they named from its arithmetical position in the list, the fifth Quintilis, the sixth Sextilis, and so on with September, October, November, and December.

εἶτα ὁ πέμπτος ἀπὸ Καίσαρος τοῦ καταγωνισαμένου Πομπήϊον Ἰούλιος· ὁ δὲ ἕκτος Αὔγουστος ἀπὸ τοῦ δευτέρου μὲν ἄρξαντος, Σεβαστοῦ δὲ ἐπικληθέντος, ὠνομάσθη. τοὺς δὲ ἐφεξῆςΔομετιανὸς εἰσεποίησε ταῖς αὑτοῦ προσωνυμίαις οὐ πολὺν χρόνον, ἀλλὰ τὰς αὑτῶν ἀναλαβόντες πάλιν ἐκείνου σφαγέντος ὁ μὲν ἕβδομος, ὁ δὲ ὄγδοος καλοῦνται, μόνοι δ’ οἱ τελευταῖοι δύο τὴν ἀπὸ τῆς τάξεως κλῆσιν, ὥσπερ ἔσχον ἐξ ἀρχῆς, διεφύλαξαν.

Afterwards the fifth month was named Julius, from Julius Caesar, the conqueror of Pompey; and the sixth month Augustus, from the second Caesar, who was given that title. The seventh and eighth months bore for a short time the names Germanicus and Domitianus, which the emperor Domitian gave them; but when he was slain, they resumed their old names of September and October. Only the last two months, November and December, preserved the names derived from their position in the list just as they were at the outset.

τῶν δὲ ὑπὸ Νομᾶ προστεθέντων ἢ μετατεθέντων ὁ μὲν Φεβρουάριος οἷον καθάρσιος ἄν τις εἴη· καὶ γάρ ἡ λέξις ἔγγιστα τοῦτο σημαίνει, καὶ τοῖς φθιτοῖς ἐναγίζουσι τότε καὶ τὴν τῶν Λουπερκαλίων ἑορτὴν εἰς τὰ πολλὰ καθαρμῷ προσεοικυῖαν τελοῦσιν ὁ δὲ πρῶτος Ἰανουάριος ἀπὸ τοῦ Ἰανοῦ, δοκεῖ δέ μοι τὸν Μάρτιον ὁ Νομᾶς ἐπώνυμον ὄντα τοῦ Ἄρεως ἐκ τῆς προεδρίας μεταστῆσαι, βουλόμενος ἐν παντὶ τῆς πολεμικῆς δυνάμεως προτιμᾶσθαι τὴν πολιτικήν.

Of the months which were added or transposed by Numa, February must have something to do with purification for this is nearest to the meaning of the word, and in this month they make offerings to the dead and celebrate the festival of the Lupercalia, which, in most of its features, resembles a purification. The first month, January, is so named from Janus. And I think that March, which is named from Mars, was moved by Numa from its place at the head of the months because he wished in every case that martial influences should yield precedence to civil and political.

ὁ γὰρ Ἰανὸς ἐν τοῖς πάνυ παλαιοῖς εἴτε δαίμων εἴτε βασιλεὺς γενόμενος πολιτικὸς καὶ κοινωνικὸς ἐκ τοῦ θηριώδους καὶ ἀγρίου λέγεται μεταβαλεῖν τὴν δίαιταν. καὶ διὰ τοῦτο πλάττουσιν αὐτὸν ἀμφιπρόσωπον, ὡς ἑτέραν ἐξ ἑτέρας τῷ βίῳ περιποιήσαντα τὴν μορφὴν καὶ διάθεσιν.

For this Janus, in remote antiquity, whether he was a demi-god or a king, was a patron of civil and social order, and is said to have lifted human life out of its bestial and savage state. For this reason he is represented with two faces, implying that he brought men’s lives out of one sort and condition into another.

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English translation by Bernadotte Perrin (1914). Original text: Bernadotte Perrin (ed. and trans.), Plutarch's Lives, vol. 1, Loeb Classical Library, Cambridge, MA: Harvard University Press; London: William Heinemann, 1914 (Greek text as digitised by Perseus).

Greek text and translation from the Perseus Digital Library, Tufts University, CC BY-SA 4.0 (Perseus Digital Library); translation public domain. Introductions, summaries and notes © GreekMythology.com.