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Hegra

Hegra 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 Hegra rather than just read about it. In short: Madāʾin Ṣāliḥ (Arabic: مَدَائِن صَالِح, lit. 'Cities of Salih') also known as, Hegra (Ancient Greek: Ἕγρα; Latin: Hegrenorum; Arabic: الْحِجْر, romanized: al-Ḥijr),, is an archaeological site located in the area of Al-'Ula within Medina Province in the Hejaz region, Saudi Arabia. A majority of the remains date from the time of the Nabataean Kingdom, when the city was founded.

Hegra — main illustration
Hegra — illustration

Key takeaways

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

Reference excerpt

Madāʾin Ṣāliḥ (Arabic: مَدَائِن صَالِح, lit. 'Cities of Salih') also known as, Hegra (Ancient Greek: Ἕγρα; Latin: Hegrenorum; Arabic: الْحِجْر, romanized: al-Ḥijr),, is an archaeological site located in the area of Al-'Ula within Medina Province in the Hejaz region, Saudi Arabia. A majority of the remains date from the time of the Nabataean Kingdom, when the city was founded. The site constituted the kingdom's southernmost and second largest city after its capital, Petra (modern-day Jordan). Traces of Lihyanite and Roman occupation before and after the Nabataean rule, respectively, can also be found. The site features more than 110 well-preserved Nabataean tombs carved into sandstone outcrops. The archaeological site lies in an arid environment. The dry climate, the lack of resettlement after the site was abandoned, and the prevailing local beliefs about the locality have all led to the extraordinary state of preservation of Al-Hijr, providing an extensive picture of the Nabataean lifestyle. Thought to mark the southern extent of the Nabataean kingdom, Al-Hijr's oasis agriculture and extant wells exhibit the necessary adaptations made by the Nabataeans in the given environment—its markedly distinct settlement is the second largest among the Nabataean kingdom, complementing that of the more famous Petra archaeological site in Jordan. The location of the site at the crossroads of trade, and the various languages, scripts and artistic styles reflected in the façades of its monumental tombs further set it apart from other archaeological sites. It has duly earned the nickname "The Capital of Monuments" among Saudi Arabia's 4,000 archaeological sites. The Quran places the settlement of the area by the Thamudi people during the days of the prophet Salih, between those of Nuh (Noah) and Hud on one hand, and those of Ibrahim (Abraham) and Musa (Moses) on the other. However, a definitive historical chronology can not be obtained through the order of verses because the Quranic chapters (see surah) deal with different subjects in non-chronologic order. According to the Quran, the Thamudis were punished by God for their idolatry, struck by an earthquake and lightning blasts. Thus, the site has earned a reputation as a cursed place—an image which the national government is attempting to overcome as it seeks to develop Mada'in Salih for its potential for tourism. In 2008, UNESCO proclaimed Mada'in Salih as a site of patrimony, becoming Saudi Arabia's first World Heritage Site. It was chosen for its well-preserved remains from late antiquity, especially the 131 monumental rock-cut tombs, with their elaborately ornamented façades, of the Nabataean Kingdom.

Name Its long history and the multitude of cultures occupying the site have produced several names. References by Strabo and other Mediterranean writers use the name Hegra (Ancient Greek: Ἔγρα) for the Nabataean site. The etymology of the name is not clear, and the Semitic root hjr can mean many things: "surround, encompass" (Aramaic); "what is defended, prohibited and illicit" or "wall, high wall" (Arabic). Mada'in Salih, meaning "the cities of Salih", started to be used during the Ottoman period at the earliest. It refers to the Salih, one of the prophets of the Quran that was unable to convince the Thamudeans to abandon their polytheism.

Although Hegra was for a long time not as important as Dedan, foreigners appear to have called the oasis Hegra. For example, the famous statue of the Achaemenid king Darius the Great made in Egypt and erected in Susa calls the Arabs hgr (𓉔𓎼𓃭𓈉).

Location and climate The archaeological site of Hegra is situated 20 km (12 mi) north of the town of Al-'Ula, 400 km (250 miles) northwest of Medina, and 500 km (310 miles) southeast of Petra, Jordan. Istakhri wrote in his Routes of the Realms (مسالك الممالك):

Al-Hijr is a small village. It belongs to Wadi al Gura and is located at one day's travel inside the mountains. It was the homeland of the Thamudians. I have seen those mountains and their carvings. Their houses are similar to ours but are carved in the mountains, which are called the Ithlib mountains. It looks as if they are a continuous range but they are separated and have sand dunes around them. You can reach the top of the mountains, but this is extremely tiring. The well of the Thamudians which is mentioned in the Holy Quran is located in the middle of the mountains. The site is on an inland plain at the foot of Jabal al-Uwayrid, basalt plateau that forms a portion of the Hijaz Mountains in the eastern Hijaz. Beneath the western and northwestern parts of the site, the water table can be reached at a depth of 20 metres (66 ft). The landscape is characterized by isolated Palaeozoic sandstone outcrops shaped by intense erosion during the late Miocene. These sandstones can range from reddish-brown Cambrian layers to lighter Ordovician formations; their fine grain made them well suited to rock carving, though their resistance to erosion varies, with some strata heavily affected by wind erosion and salt crystallization. The sandstone outcroppings of the desert landscape can vary greatly in size and height. The climate is extremely arid, with average annual rainfall below 50 mm. Despite this, the site occupies a favorable hydrological position within a natural drainage gully that collects runoff from surrounding massifs. This runoff recharged shallow groundwater, which in antiquity lay less than 10 m below the surface. Exploiting these conditions, the Nabataeans developed an oasis sustained primarily by numerous deep wells rather than by surface channels, enabling irrigated agriculture and supporting both the local population and travelers through the region.

History

Rock writings Recent archaeological work has revealed numerous rock writings and pictures not only on Mount Athleb, but also throughout central Arabia. They date between the sixth century BC and the fourth century AD and are labelled as being Thamudic, a name invented by nineteenth-century scholars for these large numbers of inscriptions which had not yet been properly studied.

… excerpt ends here. Continue reading the full article.

Illustrations

Hegra: Multiple Nabataean Tombs in Hegra (Madain Saleh)
Multiple Nabataean Tombs in Hegra (Madain Saleh)
Hegra: Myrrh was one of the luxury items that had to pass through the Nabataean territory to be traded elsewhere
Myrrh was one of the luxury items that had to pass through the Nabataean territory to be traded elsewhere
Hegra: Hegra Roman inscription dedicated to Emperor Marcus Aurelius, 175–177 AD[41]
Hegra Roman inscription dedicated to Emperor Marcus Aurelius, 175–177 AD[41]
Hegra: The Ottoman Hajj Fort at Mada'in Salih, 1907
The Ottoman Hajj Fort at Mada'in Salih, 1907
Hegra: Map of the Hejaz Railway that passed through Mada'in Salih
Map of the Hejaz Railway that passed through Mada'in Salih

Worked examples

Example 1 — a first encounter with Hegra

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

In research
Hegra 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 Hegra 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
Hegra is common in secondary-school and first-year university syllabi. It links to neighbouring topics Al-Ula, Ancient Greek geography of Arabia, Archaeological sites in Saudi Arabia, so understanding it makes those chapters shorter.
In everyday life
Look for Hegra 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 Hegra in 20 minutes

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

Frequently asked questions

What is Hegra in simple terms?

Madāʾin Ṣāliḥ (Arabic: مَدَائِن صَالِح, lit. 'Cities of Salih') also known as, Hegra (Ancient Greek: Ἕγρα; Latin: Hegrenorum; Arabic: الْحِجْر, romanized: al-Ḥijr),, is an archaeological site located in the area of Al-'Ula within Medina Province in the Hejaz region, Saudi Arabia. A majority of the…

Why does Hegra 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 Hegra?

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 Hegra.

Tags

  • Al-Ula
  • Ancient Greek geography of Arabia
  • Archaeological sites in Saudi Arabia
  • Castles in Saudi Arabia
  • Former populated places in West Asia
  • Jinn-related places
  • Medina Province, Saudi Arabia
  • Nabataea
  • Nabataean architecture
  • Railway museums in Saudi Arabia
  • Rock-cut architecture
  • Rock-cut tombs

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