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Incitatus

Incitatus is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Incitatus rather than just read about it. In short: Incitatus (Latin pronunciation: [ɪŋkɪˈtaːtʊs]; meaning "swift" or "at full gallop") was the favourite horse of Roman Emperor Caligula (r. 37–41 AD). According to legend, Caligula planned to make the horse a consul, although ancient sources are clear that this did not occur.

Incitatus — main illustration
Incitatus — illustration

Key takeaways

  • Incitatus belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Incitatus to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Incitatus from memory before moving on to harder problems.

Reference excerpt

Incitatus (Latin pronunciation: [ɪŋkɪˈtaːtʊs]; meaning "swift" or "at full gallop") was the favourite horse of Roman Emperor Caligula (r. 37–41 AD). According to legend, Caligula planned to make the horse a consul, although ancient sources are clear that this did not occur. Supposedly, Incitatus had 18 servants for himself, he lived in a marble stable, walked in a harness decorated with rare and special stones/jewels, dressed in purple (the colour of royalty) and ate from an ivory manger.

Legend According to Suetonius in the Lives of the Twelve Caesars (121 AD), Caligula planned to make Incitatus a consul, and the horse would "invite" dignitaries to dine with him in a house outfitted with servants there to entertain such events. Suetonius also wrote that the horse had a stable of marble, with an ivory manger, purple blankets and a collar of precious stones. Cassius Dio (165–235 AD) indicated that the horse was attended by servants and was fed oats mixed with gold flake. He also notes that Caligula consecrated "his horse" as a priest in his service, although this horse is not named but is often assumed to be Incitatus.

Historical accuracy The accuracy of the received history is generally questioned. Historians such as Anthony A. Barrett suggest that later Roman chroniclers such as Suetonius and Dio Cassius were influenced by the political situation of their own times, when it may have been useful to the current Roman emperors to discredit the earlier Julio-Claudian emperors. Also, the lurid nature of the story added spice to their narratives and won them additional readers. Scholars suggest that the treatment of Incitatus by Caligula was an elaborate prank intended to ridicule and provoke the Senate, rather than a sign of insanity, or was perhaps a form of satire with the implication that a horse could perform a senator's duties. Barrett noted, "Many stories were spread about Incitatus, originating most likely from Caligula's own humorous quips... [p]ossibly out of perverted sense of humor Caligula would pour libations to Incitatus' salus [health and well-being], and claimed that he intended to co-opt him as his priest." Ancient sources are clear that the horse was never made a consul. Both Suetonius's and Dio Cassius's accounts only allege that Caligula planned to appoint Incitatus as consul, but Dio states that the plans were never realised.

In art and metaphor Incitatus has for centuries been an allegorical figure when referencing examples of political ineptitude, going back at least to 1742. In Act III of Anton Chekhov's The Cherry Orchard (1904), Pishchik says that his family is "descended from that very nag Caligula inducted into the Senate." Aleister Crowley's Liber VII Chapter 4, v. 28–30, suggest Incitatus had a deeper significance, reading, "Who wast Thou, O Caesar, that Thou knewest God in an horse? For lo! we beheld the White Horse of the Saxon engraven upon the earth; and we beheld the Horses of the Sea that flame about the old grey land, and the foam from their nostrils enlightens us!" The life of Incitatus is the subject of Zbigniew Herbert's poem "Caligula" (in Pan Cogito, 1974). In I, Claudius, Robert Graves wrote that Incitatus was made a senator and was put on the list to become a consul; that eventually, Claudius removed the governmental stipend for Incitatus and his status as senator for lacking the monetary requirements; that later, Incitatus was slaughtered after injuring his leg at a race; and that the mate of Incitatus, Penelope, was used by Claudius during his war with Britain. In the 1957 Ayn Rand novel Atlas Shrugged, a mention of Incitatus is overheard by the newly wed wife of James Taggart, Cherryl. She overhears the conversation of two men apparently discussing her wedding and her husband. The 2000 BBC Radio 4 comedy Me and Little Boots, by Shaun McKenna, told the story of Caligula (Latin for "little boots") from the point of view of Incitatus, who was played by Leslie Phillips. In the 2006–2011 comic Jack of Fables, Incitatus talks so much that he risks giving away his status as a fable and frequently mentions his former status as a Roman senator. The progressive metal band Caligula's Horse is named after Incitatus. In the 2012 grand strategy game Crusader Kings II, if your character has the lunatic trait you will appoint a horse based of Incitatus called Glitterhoof as your chancellor. The 2018 novel The Burning Maze by Rick Riordan presents Incitatus as a secondary antagonist. In the 1985 novel Chapterhouse: Dune by Frank Herbert, Scytale becomes a Tleilaxu Master despite having been born a Facedancer, seen as little more than an animal by the existing Masters.

See also List of historical horses Non-human electoral candidates

References

Illustrations

Incitatus: Caligula and Incitatus, drawing by Jean Victor Adam
Caligula and Incitatus, drawing by Jean Victor Adam

Worked examples

Example 1 — a first encounter with Incitatus

Start with the simplest possible case. Write down what Incitatus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Incitatus before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Incitatus ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Incitatus

In research
Incitatus appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Incitatus in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Incitatus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ancient individual animals, Animals in politics, Caligula, so understanding it makes those chapters shorter.
In everyday life
Look for Incitatus outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Incitatus in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Incitatus means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Incitatus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Incitatus in simple terms?

Incitatus (Latin pronunciation: [ɪŋkɪˈtaːtʊs]; meaning "swift" or "at full gallop") was the favourite horse of Roman Emperor Caligula (r. 37–41 AD). According to legend, Caligula planned to make the horse a consul, although ancient sources are clear that this did not occur.

Why does Incitatus matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Incitatus?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Incitatus.

Tags

  • Ancient individual animals
  • Animals in politics
  • Caligula
  • Individual male horses

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