The Druids

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A bronze plaque, broken into seventy-three pieces and recovered from a field near Coligny in eastern France in 1897, carries the longest document in the Gaulish language that survives. It is a calendar: five years of lunar months ruled into columns, written in Gaulish words but Roman letters and numerals, its months named Samonios, Giamonios, Equos, and the rest, its days marked auspicious or not. Whoever drew it up kept time by the moon and reconciled it to the sun with an inserted month, and knew which nights were fit for what. The hands that designed such a reckoning belonged to the only people in the Celtic world trained to hold it — the learned order the Greeks and Romans called the Druids. The tablet is one of the very few things they left that can be touched. Almost everything else about them comes secondhand, through the writing of the strangers who conquered them.

A class known through its enemies

The Druids were the learned class of the ancient Celtic peoples — the tribes of Gaul, of Britain, and of Ireland — and within their own societies they were priests, judges, teachers, healers, diviners, and the memory of the tribe. They committed nothing of their doctrine to writing. The classical notices are unanimous on this point, and it is the central fact of their history: a learned order in a culture that, for sacred matters, refused the written word, so that the order died without leaving a book. What is known of them descends almost entirely through a small body of Greek and Latin testimony, written from outside and often by men with reasons to despise them.

The longest single account is Julius Caesar’s, in the sixth book of his commentary on the Gallic war, set down about 52 BCE while he was completing the conquest of Gaul. Caesar divides Gaulish society into two honored orders, the knights and the Druids, and assigns to the Druids the whole of the sacred and a great share of the civil. They preside over public and private worship and over sacrifice; they rule on nearly every dispute, criminal and civil, fixing penalties and settling questions of inheritance and boundary; and their gravest sanction is to bar an offender from the rites — an excommunication that makes the man an outcast whom none will approach. They answer to a single archdruid, chosen for life, and once a year they convene at a consecrated place in the territory of the Carnutes, reckoned the center of all Gaul, to hear the cases brought before them. They are exempt from military service and from tribute, and the privilege draws many to the long training the order demands.

That training is the second fact the sources fix on. Caesar reports that some remain in instruction for as many as twenty years, learning by heart a great quantity of verse, since it is forbidden to set the teaching down — partly, he guesses, so that the doctrine should not become common, partly so that the memory should not grow slack by leaning on the page. Whatever the reason, the effect is a discipline of pure memory: a curriculum carried entirely in the mind, passed mouth to ear across a working life, comprising the lore of the gods, the movements of the stars, the size of the world, the nature of things, and the law. To be a Druid was to be a living library in a culture that wrote almost nothing down.

Greek writers, drawing largely on the lost ethnography of Posidonius, sorted the order more finely. Strabo, writing in the early first century CE, names three honored groups among the Gauls: the bardoi, the poets and singers; the ouateis — the vates, or seers — who attend to divination and to the study of nature; and the Druids proper, who add to the study of nature a concern with what Strabo calls moral philosophy. The threefold scheme of bard, seer, and Druid, however loosely the ancients held it, became the frame through which the order was afterward understood. So did the report, in Strabo and Diodorus alike, that the Druids were held so just and so authoritative that they could walk between two armies drawn up for battle and halt the fighting with a word.

What they held

The oak-and-mistletoe rite imagined by Henri-Paul Motte (1900), after Pliny’s description. — Henri-Paul Motte, via Wikimedia Commons (public domain)

The doctrine the classical writers found most arresting concerned the soul. The Druids teach, Caesar reports, that souls do not perish but pass after death from one body into another, and he draws from this the inference that fascinated him: the belief drives out the fear of death and so makes the Celtic warrior brave. A man who knows his soul will live again does not fight as a man who has only one life to lose. The same teaching surfaces in the other notices, and the Greeks gave it a name from their own world. Diodorus Siculus records that the Pythagorean doctrine prevails among the Celts — that souls are immortal and, after a fixed number of years, begin a new life as the soul enters another body. The scholar Alexander Polyhistor called the Druidic teaching on the soul Pythagorean in so many words. To an educated Mediterranean reader the Druids looked like philosophers, and the philosophy they looked like was the transmigration taught by Pythagoras and the Pythagorean schools — and behind them by the Orphic poets — the deathless soul moving through successive lives. Whether the Celtic teaching was a true kin of the Greek, a common Indo-European inheritance, or simply the nearest box a Greek writer had to hand, the sources will not say. What they establish is that the men who described the Druids placed them, without hesitation, among the wise.

Their temple was not a building. The Druids worshipped in the nemeton, the sacred grove — a clearing of trees set apart, the word itself glossed in a late Latin source as the Gaulish equivalent of a sanctuary. The grove form ran the whole length of the Celtic world, from a Drunemeton in Galatia in Asia Minor, where Strabo says the Galatian council met, to Medionemeton near the Antonine Wall in Scotland and a scatter of Nemet- names across Gaul and Britain. Where the Mediterranean built columns, the Celts kept a wood. Of all their rites the one that survived best is the one Pliny the Elder preserved in his natural history: the Druids hold nothing more sacred than the mistletoe and the oak on which it grows, and when it is found, a white-robed priest climbs the tree and severs the plant with a golden sickle, letting it fall into a white cloak spread to receive it, while two white bulls are sacrificed below. Pliny notes that the Gauls called the mistletoe by a name meaning “all-healing,” and that a draught of it was thought to make barren animals fruitful and to be a remedy against poisons. The grammar of the rite — the gold, the white, the precise day of the moon, the plant that grows on the oak without touching the ground — is the most concrete picture of Druidic practice the ancient world has left.

It is not the only picture. The same writers report a darker office. Caesar describes the Gauls offering human sacrifice and building, for the purpose, enormous figures of wickerwork that they fill with living men and set alight, preferring criminals as victims but using the innocent when criminals run short. Strabo and Diodorus echo something like it, men and animals burned together in great frames of wood and straw. The burning wicker figure is among the most notorious images attached to the Druids, and it is also among the least secure. The reports are hostile, written by the people conquering the Celts and serving, in part, to justify the conquest, and modern historians treat the more theatrical descriptions with care — granting that Celtic ritual killing occurred, archaeology confirms as much, while doubting that it took the spectacular form the conquerors described. Where the line falls between observation and the standard Roman vocabulary for a barbarous enemy cannot be recovered from a record kept entirely by one side.

The breaking of the order

The Druids were destroyed, as a functioning institution, by Rome. Their authority spanned tribes and so threatened a power that ruled by dividing them; their courts were a rival jurisdiction; their groves were a rallying point. Under the early emperors the order was suppressed in Gaul by decree. In Britain it made its last documented stand. Tacitus, in the fourteenth book of his Annals, describes the Roman governor Suetonius Paulinus crossing to the island of Mona — Anglesey, off the northwest coast of Wales — about 60 or 61 CE. On the far shore the defenders were drawn up, and among them the Druids, hands lifted to the sky, pouring out curses, so that the legionaries froze at the sight as though their limbs were bound. The soldiers shook off the fear, cut the defenders down, and felled the sacred groves. With the groves of Mona went the visible heart of British Druidry. The order did not survive the first century in any continuous, institutional form. In Roman Gaul and Britain its religious functions were absorbed, suppressed, or driven to the margins, and the long training that had made a Druid had nowhere left to happen.

“An Arch Druid in His Judicial Habit,” from Meyrick and Smith’s “Costume of the Original Inhabitants of the British Islands” (1815) — a Romantic invention, not an ancient likeness. — S. R. Meyrick and C. H. Smith, via Wikimedia Commons (public domain)

A thinner afterlife survived in Ireland, which Rome never reached. The medieval Irish, writing centuries after their conversion, remembered the druí — a word their own lexicon glosses as magician or wizard — and the filid, the learned poets, who in the early Irish law tracts hold a legal standing the druí by then had lost. The vernacular literature of medieval Ireland is the one body of writing produced from within a Celtic culture rather than against it, and so it is precious; but it is also late, Christian, and shaped by the monks who wrote it down, and it cannot be read straight back onto the pre-Roman order. It is a window, but a clouded one. Between it and Caesar there is no continuous text, and between the suppression of the order and the modern age there is, for the most part, silence.

The Druids reinvented

What the modern world calls Druidry is not the survival of that order but its reconstruction, begun in the eighteenth century and built across the gap the sources leave. The distinction is the single most important thing to keep in view, because the ancient Druids and the reinvented ones share a name and almost nothing else. The reinvention can be dated and named with a precision the ancient layer will never allow, and it assembled in stages.

The first was antiquarian. As the great stone monuments of southern Britain drew learned attention, the question of who had raised them was answered with the only pre-Roman priesthood the classical record supplied. John Aubrey proposed, in manuscript, that Stonehenge and Avebury were pre-Roman British work and tentatively gave them to the Druids; William Stukeley made the attribution canonical in his Stonehenge: A Temple Restor’d to the British Druids (1740) and its companion Abury (1743). Stukeley’s surveys had real value — he coined the term “trilithon” and recorded features since destroyed — but his interpretation was theology, not archaeology: he held that the Druids had practiced a patriarchal monotheism descended through Abraham that foreshadowed Christianity, and that the stones preserved it. The thesis has been untenable since stratigraphic excavation and radiocarbon dating placed Stonehenge’s principal phases roughly between 3000 and 1600 BCE — two millennia before any people the sources would recognize as Druids. The Druidic Stonehenge is an eighteenth-century idea, and it has proved nearly impossible to dislodge.

The second stage was literary and Welsh. The Romantic age widened Stukeley’s overlay into a full enthusiasm, from the prophetic books of William Blake, who set Druid temples across mythic Albion, to the speculative volumes of antiquaries who made the Druids everything from primitive Christians to emigrant Indian Brahmins. Its most consequential figure was Edward Williams, the Glamorgan stonemason and poet known as Iolo Morganwg. A forger of real literary gift, he did not merely interpret the Druids; he invented an entire bardic-Druidic tradition and threaded it into Welsh culture. In 1792, on Primrose Hill in London, he convened the first Gorsedd of the Bards, a ceremony of his own composition; he produced an invented bardic alphabet, a cyclical cosmology, and a “Third Series” of Welsh Triads that he attributed to old Glamorgan manuscripts and that scholarship has shown he wrote himself. The Gorsedd was attached to the Eisteddfod and became, from the mid-nineteenth century, a central institution of Welsh national culture, with its robed archdruid and its bards — a living ceremony still held each year. Its custodians no longer claim ancient descent. The National Library of Wales states plainly that Iolo devised the Gorsedd’s rituals from what was known of the Druids, with a strong Christian coloring, to assert that the heritage of the Celts belonged to the Welsh. It is a near-perfect specimen of what historians call an invented tradition: fabricated in its pedigree, entirely real as a fact of culture.

A third stage was fraternal and, in time, religious. The Ancient Order of Druids, founded in London in 1781, was a benevolent society on the model of Freemasonry — lodges and regalia and a Druidic dress rather than a Druidic creed. A separate body, the later Druid Order, traced itself to a meeting supposedly convened by John Toland at a London tavern in 1717; Toland did write a posthumously published history of the Druids, but that lineage is a twentieth-century retrofit, modeled on the genuine 1717 founding of the Grand Lodge of England. Out of these orders and the wider occult revival came the modern nature-centered Druidry — seasonal in its calendar, Celtic in its imagery, drawing on Iolo’s cosmology and the broader Western esoteric current. It is best understood as a new religious movement rather than a survival, and its more reflective practitioners say so openly. The relation it bears to the order on Mona is one of name and longing, not descent — much as the Sabians of Harran reached back toward a Chaldean star-wisdom they could know only at a great remove.

The honest account therefore runs on two tracks that must not be merged. On one is a real priestly order, attested across the Celtic world, combining sacral, judicial, and educational authority, holding a doctrine of the soul’s survival, keeping time by a calendar of bronze and lore by a discipline of memory — and known to history only through the writing of the people who broke it. On the other is a body of practice conjured, centuries after that order was gone, out of classical fragments, Romantic poetry, antiquarian error, and outright invention. The grove was felled and the memory it held went with the men who carried it; what later took the name was something newly made, reaching across an unbridged gap toward a figure the records preserve only at a distance, in the hand of his foes.

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