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Kharraqan Towers

Kharraqan Towers is a engineering 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 Kharraqan Towers rather than just read about it. In short: The Kharraqan Towers (Persian: برج‌های خرقان, romanized: Borj ha-ye Kharraqan), also known as the Kharrakhan or the Domes of Kharaghan, are a pair of mausolea built in 1067 and 1093 CE, in the Kharraqan region, in Hesar-e Valiyeasr, near Qazvin, Qazvin province, northern Iran. They are notable for being an early example of a geometric ornament, an early example of double domes, and one of the earlier tomb towers tha…

Kharraqan Towers — main illustration
Kharraqan Towers — illustration

Key takeaways

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

Reference excerpt

The Kharraqan Towers (Persian: برج‌های خرقان, romanized: Borj ha-ye Kharraqan), also known as the Kharrakhan or the Domes of Kharaghan, are a pair of mausolea built in 1067 and 1093 CE, in the Kharraqan region, in Hesar-e Valiyeasr, near Qazvin, Qazvin province, northern Iran. They are notable for being an early example of a geometric ornament, an early example of double domes, and one of the earlier tomb towers that appeared in the Seljuk era during the 11th century. The octagonal brick structures stand 13 metres (43 ft) tall, and each side is 4 metres (13 ft) wide. The surface of both mausolea demonstrate extensive use of geometry. The interior walls of the older mausoleum are decorated with paintings of various subjects. The eastern tower dates from 1067–68, and the western tower dates from 1093.

Descriptions

Structure Both mausolea have double shells for the domes; the inner shells are intact, but the outer shells on both towers are lost. There is no direct access to light through the windows on the outer and inner shells of the dome. However, the opposite positions of the window on the two shells allow indirect light into the first tower through the side window on the inner shell. Each octagonal tower has eight rounded buttresses - one per corner. Stronach and Young speculate there were vertical ribs for the demolished outer shell of the dome; however, they conclude from the lack of same ribs in the inner side that the ridges, accompanying the ribs, were decorative.

Exterior Both towers have inscriptions of their architect on the exterior surface. Muhammad b. Makki al-Zanjani is inscribed on the earlier tower; Abu’l-Ma’ali b. Makki al-Zanjani, on the later tower. Stronach and Young indicate the two names refer to the same person—a local, unknown architect. Also on the exterior of the buildings is an intricate geometric patterning formed of carved bricks. The brick also features lengthy inscriptions, both historical and Quranic. The historical inscription on the eastern tower includes not only the architect, but also another name, possibly the mausoleum's intended patron, which can only be partially read due to damage. The Kufic inscription of Quranic text on the exterior walls of both towers, identically distributed across sides and buttresses, features Sura 59, verses 21-23, recognizable despite damage on buttresses. Samuel Stern asserts that these Suras are an unusual choice for mausolea, but points to the preceding verses as being more fitting. Parts of the inscriptions above the western tower's door can be recognized as Sura 23, Verse 115.

Interior The eastern tower's interior appears to have been fully decorated with frescoes, but only a few survive. There are paintings of mosque lamps in the niches, of pomegranate trees and peacocks in the piers alternating between them, and of a medallion surrounding peacocks and geometrical ornament near the top of the niches. There is also a band of Kufic calligraphy just below the beginning of the dome. The western tower's interior contains no plaster decoration; instead, there are a mihrab and additional brick ornament. It is believed that the occupant of the eastern tower was Abu Sa'id Bijar and the occupant of the western tower was Abu Mansur Iltayti, according to Dr. Samuel Miklós Stern's transliteration of the inscriptions on the towers.

Interpretations The Kharraqan Towers exhibit more elaborate external design, individualized for each of the eight sides, in comparison to other towers with more repetitive patterns. Oleg Grabar reminds that there is no concrete method of elucidating the meaning of the abstract, geometric decoration in Islamic architecture. Instead, the intricacy of the geometric pattern promotes appreciation of the visual design itself. The subjects of wall paintings inside the western tower possess symbolic association with heaven. Abbas Daneshvari connects the light of the lamp with the light of the god, thus with paradise. Daneshvari further associates the interior paintings with paradise by emphasizing the iconographic role of peacocks, in sunburst medallions, as the bird of paradise. Peacocks appear in the Islamic medieval culture of Iran in literature and art objects such as textiles and ceramic wares.

21st century Both towers were significantly damaged by the 2002 Bou'in-Zahra earthquake. They were in a good state of preservation before the event, suggesting it was one of the most powerful quakes in the region for approximately 900 years.

See also

Iranian architecture Islam in Iran Persian domes

References

Further reading Hatim, Ghulam Ali (2000). Mimari-i Islami-i Iran dar dawrah-i Saljuqian (in Persian). Tehran: Muassasah-i Intisharat-i Jihad-i Danishgahi. Hoag, John D. (2004) [c. 1973]. Islamic architecture. Milano: Electa Architecture; [S.l.]: Distributed by Phaidon Press. Stronach, David; Cuyler Young Jr., T (1966). "Three Seljuq Tomb Towers". Iran. IV. London: The British Institute of Persian Studies: 1–20.

External links Media related to Kharaqan Towers at Wikimedia Commons

Illustrations

Kharraqan Towers illustration

Worked examples

Example 1 — a first encounter with Kharraqan Towers

Start with the simplest possible case. Write down what Kharraqan Towers claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Kharraqan Towers 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 Kharraqan Towers 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 Kharraqan Towers

In research
Kharraqan Towers appears in engineering 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 Kharraqan Towers 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
Kharraqan Towers is common in secondary-school and first-year university syllabi. It links to neighbouring topics 11th century in Iran, Buildings and structures completed in 1067, Buildings and structures completed in 1093, so understanding it makes those chapters shorter.
In everyday life
Look for Kharraqan Towers 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 Kharraqan Towers in 20 minutes

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

Frequently asked questions

What is Kharraqan Towers in simple terms?

The Kharraqan Towers (Persian: برج‌های خرقان, romanized: Borj ha-ye Kharraqan), also known as the Kharrakhan or the Domes of Kharaghan, are a pair of mausolea built in 1067 and 1093 CE, in the Kharraqan region, in Hesar-e Valiyeasr, near Qazvin, Qazvin province, northern Iran. They are notable for…

Why does Kharraqan Towers matter?

Because it connects several engineering 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 Kharraqan Towers?

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 Kharraqan Towers.

Tags

  • 11th century in Iran
  • Buildings and structures completed in 1067
  • Buildings and structures completed in 1093
  • Buildings and structures in Qazvin province
  • Domes in Iran
  • Mausoleums in Iran
  • National works of Iran
  • Octagonal buildings in Iran
  • Religious buildings and structures with domes
  • Seljuk architecture
  • Twin towers

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