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V-in-square map

V-in-square map 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 V-in-square map rather than just read about it. In short: The V-in-square (or V-in-◻) map is a highly schematic type of mappa mundi (world map) in use in Europe during the Middle Ages. It is based on and usually found in conjunction with the Etymologiae of Isidore of Seville.

V-in-square map — main illustration
V-in-square map — illustration

Key takeaways

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

Reference excerpt

The V-in-square (or V-in-◻) map is a highly schematic type of mappa mundi (world map) in use in Europe during the Middle Ages. It is based on and usually found in conjunction with the Etymologiae of Isidore of Seville.

Description The V-in-square map is named from its basic shape, by analogy with the T and O map. It is a square map divided into three parts by a V. These are labelled after the three sons of Noah, each corresponding to one of the known continents: Japheth for Europe on the left, Shem for Asia in the middle (inside the V) and Ham for Africa on the right. Like the T and O map, it is oriented with east at the top. Confusingly, the left edge is often labelled west and the right edge south, while the bottom is unlabelled. Some maps label the cardinal directions more logically, but most label the areas with the names of Noah's sons rather than the names of the continents. David Woodward classifies it as a mappa mundi of the schematic tripartite type. Michael Andrews classifies it as of the oecumenical tripartite type, by which he means that it depicts only the habitable world known to the medievals, to the exclusion of the Antipodes. Marcia Kupfer questions whether the V-in-square "figure" should be considered a map at all, since the correspondence between Noah's sons and the continents is not normally indicated and it is a presumption that the labelling of east and west on adjacent sides should be considered an error.

Usage

The geography of V-in-square maps is based on a single sentence in the Etymologiae of Isidore of Seville, written in the early 7th century: "For Asia extends from south to north in the east, but Europe from the north to the west, Africa from the west to the south." There are 35 known examples of V-in-square maps and 31 of them are illustrations of Book 14 of the Etymologiae, where they always accompany a T and O map. Only three V-in-square maps are not accompanied by a T and O map. The two map types both generally show Asia as being the same size as Europe and Africa combined, but the T and O map is otherwise a much better representation of Isidore's full description of the world. Although Isidore may have included a T and O map in his original work, the V-in-square map does not originate with him, but was probably designed by an early copyist. Although the V-in-square map illustrates Book 14, the names of Noah's sons are drawn from Book 9. V-in-square maps appear only in manuscripts. The earliest known example is found with a copy of the Etymologiae made before 811. It continued to be included in copies as late as the 15th century, but not later. The most elaborate example of the type was that painted by the Master of Jouvenel des Ursin for a copy of Giovanni Colonna's Mare historiarum, which may have been based on a V-in-square map in a copy of Raoul de Presles's translation of Augustine's De civitate Dei, where it could have been used to show the monstrous races as all descended from Adam. A copy of Corpus Pelagianum made at Oviedo around 1200 (now Madrid, Biblioteca nacional de España, MS 1513, but known as the Códice de Batres) contains a highly unusual square map on the back of the first folio. Patrick Marschner suggests that it is based on the V-in-square map type influenced by the T and O: "the map ... seems to follow the schematic approach of the V-in-square maps rather than that of T-O maps." it is square with the cardinal directions labelled, the continents labelled by Noah's sons and divided into three parts albeit with vertical lines, perhaps to better accommodate the copious text.

Table of maps The following is a table of V-in-square maps cited by Van Duzer 2012, plus the V-in-square-inspired map discussed in Marschner 2021 (marked in blue). It is not a complete list.

Notes

Bibliography

Illustrations

V-in-square map: A V-in-square map with all four edges correctly labelled by cardinal direction and the continents identified with Noah's sons and their climates (temperate Asia, frigid Europe and hot Africa)
A V-in-square map with all four edges correctly labelled by cardinal direction and the continents identified with Noah's sons and their climates (temperate Asia, frigid Europe and hot Africa)
V-in-square map: A Renaissance elaboration of the V-in-square concept, in which "what had been the rectangular edges of the earth have become the frame of a view of the earth". The earth's curvature is depicted on the horizon. The positions of Europe and Africa have been curiously reversed.[5]
A Renaissance elaboration of the V-in-square concept, in which "what had been the rectangular edges of the earth have become the frame of a view of the earth". The earth's curvature is depicted on the horizon. The positions of Europe and Africa have been curiously reversed.[5]
V-in-square map illustration
V-in-square map illustration
V-in-square map illustration

Worked examples

Example 1 — a first encounter with V-in-square map

Start with the simplest possible case. Write down what V-in-square map 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 V-in-square map 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 V-in-square map 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 V-in-square map

In research
V-in-square map 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 V-in-square map 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
V-in-square map is common in secondary-school and first-year university syllabi. It links to neighbouring topics History of cartography, Types of map, so understanding it makes those chapters shorter.
In everyday life
Look for V-in-square map 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 V-in-square map in 20 minutes

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

Frequently asked questions

What is V-in-square map in simple terms?

The V-in-square (or V-in-◻) map is a highly schematic type of mappa mundi (world map) in use in Europe during the Middle Ages. It is based on and usually found in conjunction with the Etymologiae of Isidore of Seville.

Why does V-in-square map 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 V-in-square map?

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 V-in-square map.

Tags

  • History of cartography
  • Types of map

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