A Roman senator once opened a scroll of the Aeneid at random, placed his finger on a line, and read his political fate. The practice had a name. But which name? The answer depends on whether you are reading the Latin correctly or following centuries of scribal habit. Sortes Vergilianae (with the e) is the historically accurate spelling, referring to divination by the Aeneid. Sortes Virgilianae (with the i) is a common medieval and modern misspelling that has become widespread enough to appear in published books. The difference is one letter. The confusion has lasted a thousand years.
What Actually Defines Sortes Vergilianae?
Sortes Vergilianae (pronounced SOR-tays ver-gil-ee-AH-nay) is a form of bibliomancy: divination by randomly selecting a passage from a sacred or authoritative text. The text in question is Virgil’s Aeneid, the epic poem composed between 29 and 19 BCE that became Rome’s national epic. The practitioner opens the scroll or codex without looking, places a finger on a line, and interprets that line as an answer to a question.
The practice belongs to the broader category of sortes (lots) that Romans used for decision-making. Other sortes traditions included the Sortes Homericae (using Homer’s Iliad and Odyssey) and the Sortes Sanctorum (using the Bible, which became dominant in Christian Europe). What made the Vergilian version distinctive was its literary prestige. Virgil’s poem was not scripture. It was poetry. But for educated Romans, it carried an authority that approached the sacred.
The spelling Virgilianae (with an i) appears in medieval manuscripts and early printed books. It reflects a common Latin vowel shift: the poet’s name in classical Latin was Vergilius, but by the 4th century CE, scribes and speakers had begun writing and pronouncing it Virgilius. The i form became standard in the Middle Ages. When Renaissance humanists recovered classical spelling, they restored the e, but the i form never fully disappeared. Both spellings refer to the same practice. The e is correct. The i is not wrong in the sense that it fails to communicate, but it is historically secondary.
Where Did the Practice Come From?
The earliest explicit reference to Sortes Vergilianae comes from the Historia Augusta, a late Roman collection of imperial biographies compiled around the 4th century CE. The text describes Emperor Hadrian (ruled 117-138 CE) consulting the Aeneid by lot. Hadrian opened the poem at random and found the line: “Who are you, who have come from the distant shore?” He took it as a prophecy about his succession.
The Historia Augusta also records that Emperor Alexander Severus (ruled 222-235 CE) used Sortes Vergilianae regularly. He would open the Aeneid before making major decisions and interpret the passage he found. The same source claims that the practice was common among Roman aristocrats, though no earlier Greek or Republican Roman sources mention it. This has led some scholars to argue that Sortes Vergilianae may have been a later imperial invention, not a tradition stretching back to Virgil’s own lifetime.
What is certain is that the practice was well established by the 4th century. The Christian poet Prudentius, writing around 400 CE, condemned Sortes Vergilianae as pagan superstition. His attack suggests that the practice was still widespread among educated Romans who had not converted to Christianity. The church fathers took it seriously enough to forbid it.
The practice survived the fall of the Western Roman Empire. Medieval monks copied Virgil’s works, and the Sortes Virgilianae (spelled with the i in their manuscripts) remained a known method of divination. The 12th-century scholar John of Salisbury mentions it in his Policraticus, a work on political philosophy. He describes it as a practice of “the ancients” but implies that some of his contemporaries still used it.
How Did the Romans Actually Consult the Lots?
The procedure was simple but not casual. The practitioner formulated a question, usually one with a yes-or-no or this-or-that structure. Then they opened a copy of the Aeneid at random. The method of randomization varied. Some practitioners closed their eyes and let the scroll fall open. Others spun the scroll on a table and stopped it with a finger. Still others used dice to select a book and line number, a method that survives in some medieval descriptions.
The line that appeared was read as the answer. Interpretation required skill. A line about warfare might mean conflict ahead. A line about a storm at sea might warn of emotional turmoil. A line about Aeneas’s piety might encourage the practitioner to trust the gods. The meaning was never literal. It was symbolic, contextual, and dependent on the question asked.
The most famous example of Sortes Vergilianae in action comes from the life of the Roman emperor Claudius (ruled 41-54 CE). According to the historian Suetonius, Claudius once consulted the lots and received the line: “But he, raging, was borne by the spear of the fierce Achilles.” Claudius interpreted it as a prophecy that he would die violently. He did not. He was poisoned by his wife Agrippina, which is not quite the same thing. The story illustrates the flexibility of interpretation. A line could mean almost anything if the reader wanted it to.
What Did Sortes Vergilianae Mean to the Romans?
For the Romans, Sortes Vergilianae was not fortune-telling in the modern sense. It was a form of divine consultation. The Aeneid was not a random book. It was the story of Rome’s founding, written by a poet who was believed to have been divinely inspired. Virgil himself was sometimes called vates (prophet) by his contemporaries. The line between poet and seer was thin.
The practice also carried political weight. Emperors used Sortes Vergilianae to legitimize their decisions. If the Aeneid confirmed a course of action, that action had the backing of Rome’s founding myth. For ordinary citizens, the lots offered a way to access that same authority. Opening the Aeneid was like opening a direct line to the gods who had guided Aeneas to Italy.
There was a psychological dimension as well. The act of random selection forced the practitioner to accept uncertainty. The line that appeared was not chosen. It was given. That surrender of control was itself a spiritual discipline. The Romans understood that the lots worked not because the text contained hidden messages, but because the practitioner’s mind, when confronted with a random line, would find meaning that was already there.
Sortes Vergilianae vs. Sortes Homericae: A Comparison
The closest parallel to Sortes Vergilianae is Sortes Homericae, the use of Homer’s epics for the same purpose. The two practices are structurally identical. The difference is cultural. Sortes Homericae was Greek. Sortes Vergilianae was Roman. A Greek speaker would use the Iliad or Odyssey. A Latin speaker would use the Aeneid.
There is a practical difference as well. Homer’s epics are longer and contain more narrative variety. The Iliad has scenes of battle, council, grief, and domestic life. The Odyssey has travel, monsters, hospitality, and homecoming. The Aeneid is more focused. It tells a single story of exile and foundation. This means that Sortes Vergilianae tends to produce lines about destiny, duty, and sacrifice. Sortes Homericae can produce lines about almost anything.
The two practices also had different social distributions. Sortes Homericae was used by Greek-speaking intellectuals across the Mediterranean. Sortes Vergilianae was more specifically Roman, tied to the Latin literary tradition. After the fall of the Western Empire, Sortes Vergilianae survived in Latin-reading monasteries. Sortes Homericae survived in the Byzantine Empire. They did not merge until the Renaissance, when humanists read both traditions side by side.
Common Misconceptions About the Spelling
The most persistent misconception is that Sortes Virgilianae (with i) is a different practice from Sortes Vergilianae (with e). It is not. The two spellings refer to exactly the same thing. The i form is a medieval variant that became standard in some editions and has never fully disappeared.
Another misconception is that the i spelling is a modern error. It is not. It is a medieval error that has been repeated for so long that it has its own historical validity. A scholar in 1200 who wrote Sortes Virgilianae was not making a mistake by the standards of his time. He was writing the name as it was commonly spelled. The e spelling is the classical restoration, but the i spelling is the medieval and early modern norm.
A third misconception is that Sortes Vergilianae requires a specific edition or translation. It does not. Any copy of the Aeneid will work, in any language, provided the line numbers are preserved. The practice is about the text, not the book.
FAQ
Is Sortes Vergilianae the same as bibliomancy? Yes, it is a specific form of bibliomancy that uses Virgil’s Aeneid as the text. Bibliomancy is the broader category of divination by random book selection.
Can I practice Sortes Vergilianae today? Yes. Open a copy of the Aeneid at random, place your finger on a line, and interpret it in relation to your question. Any translation works.
Why did the Romans use Virgil instead of the Bible? The Aeneid was composed before the Christian Bible existed. For pagan Romans, Virgil’s epic carried the authority of Rome’s founding myth.
Is the i spelling ever correct? In medieval and early modern contexts, yes. In classical Latin scholarship, the e spelling is preferred. Both refer to the same practice.
Closing
Sortes Vergilianae is one of the oldest documented forms of bibliomancy in the Western tradition. It survives today in the practice of opening a book at random for guidance, a method that many modern readers use without knowing its Roman origins. For a deeper look at how divination systems work, explore our guide to oracle systems. The relationship between chance and meaning is also explored in our glossary entry on sortition, and the broader tradition of Roman divination is covered in our guide to Roman religious practices. The lots are still being cast. The question is whether you are ready to read what they say.