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Sabayil Castle

Sabayil Castle 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 Sabayil Castle rather than just read about it. In short: Sabayil Castle is a submerged medieval fortress on the coast of the Caspian Sea near Baku, Azerbaijan. The castle is named after the surrounding area of Bayil.

Sabayil Castle — main illustration
Sabayil Castle — illustration

Key takeaways

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

Reference excerpt

Sabayil Castle is a submerged medieval fortress on the coast of the Caspian Sea near Baku, Azerbaijan. The castle is named after the surrounding area of Bayil. The structure is also known as the "Atlantis of the Caspian Sea". Research scientists have referred to it as Sabayil castle, Bayil castle or Bandargala, and have described it as an underground town, caravanserai, cloister, monastery, custom house or defence castle.

History

The castle was built on one of the Bayil hills near the Caspian Sea coast in 1232–33, during the life of Fariburz, son of Shirvanshah Garsasb, by architect Abdul-Majid Masud oglu. At the same time, in 1232, this architect also built the round castle in Mardakan, which was part of Abseron's integrated defence system, defending the city and Bayil Castle from the north. Some archaeologists suggested the castle belonged to the Shirvanshahs. During a major earthquake in the capital city of Baku in 1306, the building collapsed and the island submerged and remained under water for several centuries. It was not until the early 18th century, when the Caspian Sea receded, that the structure resurfaced. At this time, stones recovered from the site with inscriptions on them provided valuable information for historians. According to Azerbaijani historian Sara Ashurbeyli, Sabayil is the castle mentioned by Abdurrashid Al-Bakuvi, a 15th-century geographer who alleged that the structure was destroyed during the 13th-century Mongol invasion. Al-Bakuvi, a native of Baku, wrote in 1430 in his "Kitab-talkhis el-asar ve el-melik el-gahhar": "Baku has two castles; very strong, built of stone. One of them is very large and on the shore Maiden's Tower. This is the castle that the Mongols could not conquer. The other is further offshore. Its upper parts have been destroyed."

Architecture The building complex, which is 40 metres (130 ft) long and 180 metres (590 ft) wide, consists of 15 semi-circular castles, 16 to 28 metres (52 to 92 ft) apart and connected by a wall. One of the castles at the four corners – the northern one – stood alone, but the others were connected via small cells. The wall was between 1.2 and 1.5 metres (3.9 and 4.9 ft) thick. On the wall there were individual stone panels with frieze inscriptions 70 centimetres (28 in) long, 25 to 50 centimetres (10 to 20 in) wide and 12 to 15 centimetres (5 to 6 in) thick). In 2008 an old underpass, dated back to the 19th century, was rediscovered in the Walled City of Baku. According to scholar Vitaly Antonov, this passage is one of the several, leading to the ancient Sabayil Castle. There are several tunnels leading from the Palace of Shirvanshahs and Synykh Gala, situated in Icheri Shekher, to the sea. Synykh Gala was the mosque in the 15th century, in the times of the Shah Ismail Khatai, and was destroyed by the troops of Peter I. That is, the discovered passage is part of the underground network connecting the city of Sabayil to the land.

Relics

From 1939 to 1969, an archaeological expedition organized by the Institute of History of the Azerbaijani Academy of Sciences, led by Prof Y. Pakhomov and archaeologists I. Jafarzade and O. Isimzade, discovered relics and, at different times, more than 700 inscribed stone panels. They helped very much to clarify the purpose and the date of building of Bayil Castle. The stones are currently kept in the courtyard of the Shirvanshahs Palace in the Walled City of Baku. They are decorated with frieze inscriptions in Arabic and Persian, chain-shaped ornamentation and images of people, animals, birds and mythical animals. These artworks are valuable in the study of the culture of the Shirvanshah period. However, time and the elements have affected many of them. Up to 30 percent of the stones recovered from the sea had been damaged by the centuries-long work of the waves and their inscriptions and images had been effaced. And not all of the stones have been recovered. Historians found the names of 15 Shirvanshahs and other valuable information on these stone slabs.

Legacy Arif Ardebili, a poet of the Middle Ages, noted in his well-known dastan (epic poem) "Farkhad-name" the view he had seen:

There is a fortress in the sea near Baku, This new fortress went down in flood.

The poet was most likely referring to the Bayil Castle. He saw Bayil Castle nearly a century after it was built. So, for him and his contemporaries the castle was still "new".

References

Illustrations

Sabayil Castle: The vestiges of Sabayil Fortress as seen from the Baku Boulevard, with modern marina structures behind
The vestiges of Sabayil Fortress as seen from the Baku Boulevard, with modern marina structures behind
Sabayil Castle: Sabayil Fortress' description in Baku Boulevard
Sabayil Fortress' description in Baku Boulevard
Sabayil Castle: The Sabayil stone panels in the courtyard of the Palace of the Shirvanshahs
The Sabayil stone panels in the courtyard of the Palace of the Shirvanshahs

Worked examples

Example 1 — a first encounter with Sabayil Castle

Start with the simplest possible case. Write down what Sabayil Castle 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 Sabayil Castle 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 Sabayil Castle 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 Sabayil Castle

In research
Sabayil Castle 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 Sabayil Castle 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
Sabayil Castle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Buildings and structures completed in 1233, Buildings and structures in Baku, Castles and fortresses in Azerbaijan, so understanding it makes those chapters shorter.
In everyday life
Look for Sabayil Castle 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 Sabayil Castle in 20 minutes

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

Frequently asked questions

What is Sabayil Castle in simple terms?

Sabayil Castle is a submerged medieval fortress on the coast of the Caspian Sea near Baku, Azerbaijan. The castle is named after the surrounding area of Bayil.

Why does Sabayil Castle 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 Sabayil Castle?

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 Sabayil Castle.

Tags

  • Buildings and structures completed in 1233
  • Buildings and structures in Baku
  • Castles and fortresses in Azerbaijan

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