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The Druids: Between Truth and Romance

Folklore & Belief The Druids: Between Truth and Romance

The Druids were the learned class of Celtic society – priests, judges, teachers and keepers of knowledge in one. Our most important source is Julius Caesar, who describes them in the Gallic War. According to him they ranked even above the warriors and regulated cult, law and disputes.

Illustration of Romans and druids on Mona
Romans killing druids and burning their groves – illustration from Thomas Pennant's 'A Tour in Wales', 18th century, after Tacitus' account of Mona. Thomas Pennant, public domain, via Wikimedia Commons.

What Caesar reports

According to Caesar the Druids formed a supra-regional elite that gathered once a year. Their training lasted up to twenty years – for they were not allowed to write down their knowledge but had to learn everything by heart. They taught the immortality of the soul, observed the stars and led sacrifices. It is precisely this ban on writing that is the reason we barely know their knowledge: it died with them.

"They believe that the souls do not perish, but pass after death from one to another."after Caesar, De bello Gallico VI (public domain, own translation)

Cult in the sacred grove

Like the Germanic peoples, the Celts worshipped their gods not in great temples but in sacred groves (nemeton) and at springs. Pliny transmits the famous image of the white-robed priest cutting the mistletoe from the oak with a golden sickle – a single, late note that has shaped our entire Druid image.

Priests, judges and scholars

The Druids were the spiritual elite of the Celtic world – priests, judges, teachers and advisors in one. They guarded the religious knowledge, spoke law and enjoyed an esteem that often stood above that of the warriors and princes.

Knowledge without writing

Caesar reports that the Druids deliberately did not write down their knowledge but passed it on orally in a long training – partly over two decades. All knowledge lived in memory, not on paper.

Belief in the transmigration of souls

A core point of their teaching was the belief that the soul does not perish but passes after death into a new body. Caesar thought this belief made the Celts especially fearless in battle.

Persecution by Rome

Rome saw in the Druids not only priests but also political leaders of the resistance. Therefore it acted harshly against them – the destruction of the Druid centre on the island of Anglesey (Mona) in AD 60 was a deliberate blow.

Evidence: The Druids are attested in Caesar (BG VI), Pliny, Tacitus and further ancient authors.
Myth check: The romantic image of the Druids in white robes at Stonehenge is modern – Stonehenge is about 2,000 years older than the Celts. And much of what we "know" comes from Caesar, who also saw the Druids as opponents.
What is documented: The Druids as a priestly/scholarly and judicial class of the Celts (Caesar, De bello Gallico VI; Strabo; Pliny). The oral ban on writing and the long training. The belief in the soul's survival. Cult in sacred groves.
What is myth: The popular Druid image (white robes, rituals at Stonehenge, "Celtic" stone circles) is modern romance of the 18th–20th centuries. Stonehenge is millennia older than the Celts and has nothing to do with Druids. The "Celtic tree horoscope" too is a 20th-century invention (Robert Graves), not an ancient Druid custom. Caesar, moreover, wrote as a general about an enemy – with his own agenda.

The Druids were real and powerful – but much of what we think we know "about" them is younger than their own disappearance. More on Celtic belief in the overview Celtic Religion.

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