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Hilaria

Hilaria 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 Hilaria rather than just read about it. In short: The Hilaria (; Latin "the cheerful ones", a term derived from the borrowed adjective Ancient Greek: ἱλαρός "cheerful, merry") were ancient Roman religious festivals celebrated on the March equinox to honor Cybele. Origins The term seems originally to have been a name which was given to any day or season of rejoicing.

Hilaria — main illustration
Hilaria — illustration

Key takeaways

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

Reference excerpt

The Hilaria (; Latin "the cheerful ones", a term derived from the borrowed adjective Ancient Greek: ἱλαρός "cheerful, merry") were ancient Roman religious festivals celebrated on the March equinox to honor Cybele.

Origins The term seems originally to have been a name which was given to any day or season of rejoicing. The hilaria were, therefore, according to Maximus the Confessor either private or public. Among the former, he thinks it the day on which a person married, and on which a son was born; among the latter, those days of public rejoicings appointed by a new emperor. Such days were devoted to general rejoicings and public sacrifices, and no one was allowed to show any symptoms of grief or sorrow. The Romans also celebrated hilaria as a feria stativa, on March 25, the seventh day before the Calends of April, in honor of Cybele, the mother of the gods; and it is probably to distinguish these hilaria from those mentioned above, that the Augustan History calls them Hilaria Matris Deûm. The day of its celebration was the first after the vernal equinox, or the first day of the year which was longer than the night. The winter with its gloom had died, and the first day of a better season was spent in rejoicings. The manner of its celebration during the time of the republic is unknown, except that Valerius Maximus mentions games in honour of the mother of the gods. Respecting its celebration at the time of the empire, Herodian writes that, among other things, there was a solemn procession, in which the statue of the goddess was carried, and before this statue were carried the most costly specimens of plate and works of art belonging either to wealthy Romans or to the emperors themselves. All kinds of games and amusements were allowed on this day; masquerades were the most prominent among them, and everyone might, in his disguise, imitate whomsoever he liked, even magistrates. The Romans took this feast originally from the Greeks, who called it Ἀνάβασις, Latin Ascensus: the eve of that day they spent in tears and lamentations, calling it Κατάβασις (Latin Dēscensus). Greek writers later borrowed the Latin name as Ἱλάρια, as appears from Photios I of Constantinople's Bibliotheca in his codex of the life of the philosopher Isidore of Alexandria.

Festival structure Sallustius, writing in the 4th century AD, described the basic multi-day structure of the festival as it related to the myth of Cybele and Attis: "And at first we ourselves, having fallen from heaven and living with the nymph, are in despondency, and abstain from corn and all rich and unclean food, for both are hostile to the soul. Then comes the cutting of the tree and the fast, as though we also were cutting off the further process of generation. After that the feeding on milk, as though we were being born again; after which come rejoicings and garlands and, as it were, a return up to the Gods." According to the calendar in the Chronography of 354, ten days before the calends of April was the Arbor Intrat, or "entering of the tree". According to Arnobius, in his Against the Pagans (book V), this involved cutting down a pine tree and setting it up in a place of honor inside a temple of Cybele. Fleeces of wool would be tied around the tree trunk, representing the goddess wrapping the dying Attis against the cold. The branches would be decked in wreathes of violets, as "the Mother adorned with early flowers the pine which indicates and bears witness to the sad mishap." The priests would ritually mourn for the dead Attis, beating their chests and wailing. Following this, according to Arnobius, worshipers would fast and, in particular, abstain from bread, "in imitation of the time when the goddess abstained from Ceres' fruit in her vehement sorrow", and they would enter a state of mourning, wounding their arms and breasts. The full festival can be tentatively reconstructed (with the days of the festival literally translated) as follows:

15 March. "The Reed Entered". Its exact significance is uncertain (the reeds may refer to the river bank where Attis was exposed as a child and rescued by Cybele). A nine-day period of abstinence from bread, pomegranates, quinces, pork, fish, and probably wine began. Only milk was permitted as a drink. 22 March. "The Tree Entered" (Arbor intrat). A pine tree is felled. The tree is set up at the Temple of Cybele, its trunk wrapped in wool, and its branches decked with wreathes of violets. 23 March. A day of mourning. 24 March. "The Day of Blood" (Sanguis). Frenzied rites including scourging and whipping. Castration rituals would take place on this day. The tree is symbolically buried. 25 March. "The Day of Joy" (Hilaria) celebrating the resurrection of Attis. This was the hilaria proper (as opposed to the mournful tone of the previous days). 26 March. A day of rest. 27 March. "The Washing" (Lavatio). Added by Marcus Aurelius. 28 March. Possible ceremony at the Vatican sanctuary. Appears in the Calendar of Philocalus.

Other According to the Calendar of Filocalus from 354, a Hilaria of Isis formed part of the Isia festival, taking place on its final day, November 3. The return to life of Attis has parallels in other death/resurrection traditions such as those associated with Christ and Easter.

On this day Herodian details an assassination plot by Maternus against Emperor Commodus that was to occur on the hilaria. Maternus planned to disguise himself and his followers as members of the Praetorian Guard, and proceed among the true members of the Guard, until they were close enough to kill Commodus. However, one of Maternus's followers revealed the plot ahead of time, betraying him because, according to Herodian, his men "preferred a legitimate emperor to a robber tyrant". On the day of hilaria, he was beheaded and his followers punished. The public celebrated the emperor's safety, and Commodus sacrificed to Cybele for protecting him from harm.

Notes

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Hilaria

Start with the simplest possible case. Write down what Hilaria 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 Hilaria 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 Hilaria 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 Hilaria

In research
Hilaria 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 Hilaria 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
Hilaria is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ancient Roman festivals, Cybele, March observances, so understanding it makes those chapters shorter.
In everyday life
Look for Hilaria 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 Hilaria in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Hilaria 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 Hilaria out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hilaria in simple terms?

The Hilaria (; Latin "the cheerful ones", a term derived from the borrowed adjective Ancient Greek: ἱλαρός "cheerful, merry") were ancient Roman religious festivals celebrated on the March equinox to honor Cybele. Origins The term seems originally to have been a name which was given to any day or s…

Why does Hilaria 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 Hilaria?

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 Hilaria.

Tags

  • Ancient Roman festivals
  • Cybele
  • March observances
  • Spring equinox

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