ArticleslgStudy

science

Periplus

Periplus 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 Periplus rather than just read about it. In short: A periplus (), or periplous, is a manuscript document that lists the ports and coastal landmarks, in order and with approximate intervening distances, that the captain of a vessel could expect to find along a shore. In that sense, the periplus was a type of log, the nautical counterpart of the later Roman itinerarium of road stops.

Periplus — main illustration
Periplus — illustration

Key takeaways

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

Reference excerpt

A periplus (), or periplous, is a manuscript document that lists the ports and coastal landmarks, in order and with approximate intervening distances, that the captain of a vessel could expect to find along a shore. In that sense, the periplus was a type of log, the nautical counterpart of the later Roman itinerarium of road stops. However, the Greek navigators added various notes, which, if they were professional geographers, as many were, became part of their own additions to Greek geography. The form of the periplus is at least as old as the earliest Greek historian, the Ionian Hecataeus of Miletus. The works of Herodotus and Thucydides contain passages that appear to have been based on peripli.

Variant A word equivalent in meaning to "periplus" is "periplum", defined in the Oxford English Dictionary as being "[o]riginally and chiefly in the poetry of Ezra Pound" As a noun, Pound uses "periplum" simply to refer to a voyage or journey, as in canto 74, line 3: "The great periplum brings in the stars to our shore." Here the "great periplum" refers to the daily journey made by the Sun God, Helios. "Periplum" is also used in The Cantos adverbially, as seen in this example from canto 59:Periplum, not as land looks on a map But as sea bord seen by men sailing. (Line 82-4)In his book ABC of Reading, Pound describes the geography of Homer's Odyssey as "correct geography; not as you would find it if you had a geography book and a map, but as it would be in 'periplum,' that is, as a coasting sailor would find it." Gabriel Levin: "One more night crossing, one more periplum..." Poet Denise Levertov compared Pound's use of the term to the slow panning of a movie camera or looking out a car or train window, while also noting that this would not fully give the reader a full sense of the term's literal meaning as the speed "does not allow for the kind of changes in the beholder that contribute to new perceptions".

Etymology Periplus is the Latinization of the Greek word περίπλους (periplous, contracted from περίπλοος periploos), which is "a sailing-around" (περι is a prefix meaning around or about, while πλοῦς means "voyage"). Both segments, peri- and -plous, were independently productive: the ancient Greek speaker understood the word in its literal sense; however, it developed a few specialized meanings, one of which became a standard term in the ancient navigation of Phoenicians, Greeks, and Romans.

Known peripli Several examples of peripli that are known to scholars:

Carthaginian The Periplus of Himilco the Navigator, parts which are preserved in Pliny the Elder and Avienius. The Periplus of Hanno the Navigator, Carthaginian colonist and explorer who travelled along the coast of Africa from present-day Morocco southward at least as far as Senegal in the sixth or fifth century BCE.

Greek The Periplus of the Greek Scylax of Caryanda, in Caria, who allegedly sailed down the Indus River and then to Suez on the initiative of Darius I. This voyage is mentioned by Herodotus, and his periplus is quoted by Hecataeus of Miletus, Aristotle, Strabo and Avienius. The Euthymenes description of West Africa (around third quarter of the sixth century). His published accounts have not survived, but seem to have been known, at least at secondhand, by Plutarch. The Massaliote Periplus, a description of trade routes along the coasts of Atlantic Europe, by anonymous Greek navigators of Massalia (now Marseille, France), possibly dates to the sixth century BCE, also preserved in Avienius Pytheas of Massilia, (fourth century BCE) On the Ocean (Περί του Ωκεανού), has not survived; only excerpts remain, quoted or paraphrased by later authors, including Strabo, Diodorus Siculus, Pliny the Elder and in Avienius' Ora maritima. The Periplus of Pseudo-Scylax, generally is thought to date to the fourth or third century BCE. The Periplus of Nearchus surveyed the area between the Indus and the Persian Gulf under orders from Alexander the Great. He was a source for Strabo and Arrian, among others. On the Red Sea by Agatharchides. Fragments preserved in Diodorus Siculus and Photius. The Periplus of Scymnus of Chios is dated to around 110 BCE. The Periplus of the Erythraean Sea or Red Sea was written by a Greek of the Hellenistic/Romanized Alexandrian in the first century CE. It provides a shoreline itinerary of the Red (Erythraean) Sea, starting at the port of Berenice. Beyond the Red Sea, the manuscript describes the coast of India as far as the Ganges River and the east coast of Africa (called Azania). The unknown author of the Periplus of the Erythraean Sea claims that Hippalus, a mariner, was knowledgeable about the "monsoon winds" that shorten the round-trip from India to the Red Sea. Also according to the manuscript, the Horn of Africa was called, "the Cape of Spices," and modern day Yemen was known as the "Frankincense Country." The Periplus Ponti Euxini, a description of trade routes along the coasts of the Black Sea, written by Arrian (in Greek Αρριανός) in the early second century CE. The Stadiasmus Maris Magni, it was written by an anonymous author and is dated to the second half of the third century AD.

Rahnāmag Persian sailors had long had their own sailing guide books, called Rahnāmag in Middle Persian (Rahnāmeh رهنامه in Modern Persian). They listed the ports and coastal landmarks and distances along the shores. The lost but much-cited sailing directions go back at least to the 12th century. Some described the Indian Ocean as "a hard sea to get out of" and warned of the "circumambient sea," with all return impossible.

Tactic of naval combat A periplus was also an ancient naval maneuver in which attacking triremes would outflank or encircle the defenders to attack them in the rear.

See also List of Graeco-Roman geographers

References

Bibliography Liu, Xinru (2010). The Silk Road in World History. New York: Oxford University Press. ISBN 978-0-195-33810-2.

External links The dictionary definition of periplus at Wiktionary

Illustrations

Periplus: Beginning of the Periplous tou Euxeinou Pontou by Arrian of Nicomedia, Johann Froben and Nicolaus Episcopius, Basel 1533
Beginning of the Periplous tou Euxeinou Pontou by Arrian of Nicomedia, Johann Froben and Nicolaus Episcopius, Basel 1533

Worked examples

Example 1 — a first encounter with Periplus

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

In research
Periplus 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 Periplus 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
Periplus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Classical literature, Ezra Pound, History of navigation, so understanding it makes those chapters shorter.
In everyday life
Look for Periplus 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Periplus in 20 minutes

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

Frequently asked questions

What is Periplus in simple terms?

A periplus (), or periplous, is a manuscript document that lists the ports and coastal landmarks, in order and with approximate intervening distances, that the captain of a vessel could expect to find along a shore. In that sense, the periplus was a type of log, the nautical counterpart of the late…

Why does Periplus 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 Periplus?

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 Periplus.

Tags

  • Classical literature
  • Ezra Pound
  • History of navigation
  • Maps
  • Nautical reference works
  • Peripluses
  • Roman itineraries

Keep exploring