On 15 February each year, teams of young men from Rome's leading families gathered at a cave on the Palatine slope called the Lupercal, sacrificed goats and a dog, and had their foreheads smeared with the bloody knife. The blood was wiped off with wool dipped in milk, and the two young men marked in this way were required to laugh. Then, wearing nothing but strips of the goats' hides, they ran a circuit around the hill, striking anyone within reach — women especially, who were said to stand forward for it — with thongs cut from the same skins.
The Lupercalia was still being celebrated at the end of the fifth century CE. It outlived the emperors in the west.
Which god it belonged to is not certain
Ovid assigns the rite to Faunus and works hard at explaining the nakedness. Other ancient writers name Lupercus, or Inuus, or simply identify the god with Greek Pan, and there is a respectable modern view that the ritual was older than any of the names attached to it and that the identification with Faunus is antiquarian tidying.
This is a good case for saying plainly what is known and what is guessed. The ritual is described in detail by multiple independent witnesses across five centuries. The theology of it was already contested in antiquity, and the confident attributions in modern encyclopedias flatten a real disagreement.
The thongs were called februa, "means of purification", and it is from that word — not from the goat, not from the god — that February takes its name. The whole month was the Roman period of ritual cleansing, ending with the Terminalia.
Antony, Caesar and a crown
The best-documented Lupercalia is the one of 44 BCE. Mark Antony, running as one of the Luperci, approached Caesar where he sat in the Forum and offered him a diadem. Caesar refused it, twice, to the crowd's audible approval, and had the incident recorded in the public calendar. Plutarch describes the scene; Shakespeare opens Julius Caesar with it.
That is what makes this festival unusual among Roman rites: it is not only attested but politically attested, a moment when the constitutional crisis of the late Republic played out inside a fertility ritual with a consul running half-naked through the streets.
The god who speaks in the woods
Away from the Lupercalia, Faunus is a voice. Varro derived his name from fari, to speak, which links him to fatum and to fatuus; Latin writers used fauni in the plural for the disembodied voices heard in forests, and Lucretius, who thought all religion a delusion, still records that country people believed they heard them.
His oracle worked by incubation. In the seventh book of the Aeneid, King Latinus goes to the grove of Albunea, sacrifices a hundred sheep, lies down on their fleeces and waits for the god to answer him in a dream. That is a specific technique — sleep in a sacred place, receive the answer — attested for Faunus and for a handful of Italian sanctuaries, and it is not how Greek oracles at Delphi or Dodona operated.
In the euhemerised king-lists of early Latium he becomes a man: Picus fathers Faunus, Faunus fathers Latinus, and Rome's prehistory acquires a dynasty. His female counterpart Fauna is variously his wife, sister or daughter, and is frequently identified with the goddess whose rites excluded men entirely.
His quieter festivals are rural: a temple on the Tiber Island dedicated in 194 BCE, a country holiday on 5 December that Horace turns into one of his best-loved odes, addressing him as the lover of fleeing nymphs and asking him to walk gently over the fields.
The end of the Lupercalia, and the Valentine claim
Around 494–496 CE, Pope Gelasius I wrote a furious tract against a Roman senator who wanted the Lupercalia kept up, arguing that if the rite really preserved public health the aristocracy should run naked themselves rather than hiring the poor to do it. That text survives, and with it one of the last direct arguments between Roman traditional religion and the church, conducted over a fertility rite rather than over doctrine.
The widely repeated claim that St Valentine's Day is a Christianised Lupercalia should be treated sceptically. The two dates are adjacent and Gelasius is involved in both stories, which is the whole of the evidence; no ancient or early medieval source connects them, and the romantic content of Valentine's Day is not attested before Chaucer's late-fourteenth-century association of 14 February with birds choosing mates. It is a tidy story with nothing under it.
Fauns, satyrs and a permanent confusion
By the imperial period Roman art had merged the fauni with Greek satyrs, and the composite — goat legs, small horns, pipes — is what the word now means. Praxiteles' resting satyr, endlessly copied, was known for centuries as the Marble Faun and gave Hawthorne a novel title. Mallarmé's L'après-midi d'un faune produced Debussy's music and Nijinsky's scandalous 1912 ballet. Narnia's Mr Tumnus and the horned figure of Pan's Labyrinth are both, etymologically, Roman woodland spirits standing in for a Greek one.
Details worth having about Faunus
Was the Lupercalia really about fertility?
The women struck by the thongs were said to be made fertile or to have easier labour, and that is the explanation Roman sources give most often. But the rite also has strong purification and boundary-marking elements — the circuit of the Palatine, the februa, the timing at the year's cleansing month — and some modern readings emphasise the initiation of young aristocratic men over the fertility function. The ancient explanations are themselves guesses by writers separated from the rite's origin by centuries.
Why a dog among the victims?
No one knows, and the ancients did not either; Plutarch raises the question in his Roman Questions and offers several unsatisfying answers, including the dog's hostility to wolves and its role in purification rites generally. Dogs appear in a few other Roman rituals — notably the sacrifice at the Robigalia — and always at the margins of the ordinary sacrificial system, which normally used domestic food animals.
Is Faunus the same as Pan?
Not originally. Pan is Arcadian, a specific figure with his own myths and an Athenian cult established after Marathon; Faunus is Latin, prophetic, and attached to an Italian purification rite. Roman writers equated them because both were goat-associated woodland powers, and the equation then became so complete in art that separating them visually is now impossible.
What is the difference between Faunus and Silvanus?
They overlap and were already being conflated in antiquity, but their evidence profiles are opposite: Faunus is known from literature, a state festival and an oracle, while Silvanus is known almost entirely from inscriptions left by ordinary people and has no festival in the Roman calendar at all. Reading them as the same god loses exactly that distinction.