Al-Ahsa Oasis (Arabic: الْأَحْسَاء, al-ʾAhsā), also known as al-Ḥasāʾ (الْحَسَاء) or Hajar (هَجَر), is an oasis and historical region in eastern Saudi Arabia. Al-Ahsa Governorate, which makes up much of the country's Eastern Province, is named after it. The oasis is located about 60 km (37 mi) inland from the coast of the Persian Gulf. Al-Ahsa Oasis comprises four main cities and 22 villages. The cities include Al-Mubarraz and Al-Hofuf, two of the largest cities in Saudi Arabia.[1]
With an area of around 85.4 km2 (33.0 sq mi), Al-Ahsa Oasis is the largest oasis in the world. A large part of the oasis is located in the Empty Quarter, also referred to as Rub' al Khali in Arabic. This covers almost three-quarters of the land in the oasis, while residential areas constitute 18%.[2]
There are more than 2.5 million palm trees including date palms in the oasis, which is fed from a huge underground aquifer and irrigated by the flow of more than 280 artesian springs, allowing year-round agriculture in a region that is otherwise sand desert.[3]
The oasis became a World Heritage site in 2018.[4] It has also been part of the UNESCO Creative Cities Network since December 2015.[5] According to one author, the oases of Al-Ahsa and Al Ain (in the U.A.E., on the border with Oman) are the most important in the region of the Gulf.[6]
Al-Ahsa is the plural form of "Al-Ḥisā" (Arabic: ٱلْحِسَى) which refers to a landscape of accumulated sand with an impermeable layer underneath. When rain falls onto such a landscape, the water soaks through the sand (which prevents it from evaporating) and is retained by the impermeable base layer, forming an aquifer. Wells drilled into the earth can then provide access to a cool spring.[7]
The area used to be called Pit-Ardashir (Classical Syriac: ܦܝܛܐܪܕܫܝܪ) by Assyrians and Persians.[8]
Al-Ahsa has been inhabited since prehistoric times because of its abundance of water in an otherwise arid region.[9] Natural fresh-water springs have surfaced at oases in the region for millennia, encouraging human habitation and agricultural efforts (date palm cultivation especially) since prehistoric times.[10]
The oasis region and specifically the name Hajar (also Hagar, Haǧar) may be related to the Ancient Near East toponym Agarum, mentioned in Dilmunite inscriptions as the original home of their chief deity Inzak. If so, Agarum probably referred to the mainland area of Arabia lying opposite Bahrain.[11] According to the hypothesis, the Dilmun civilization originated at the oases of Eastern Arabia, but later relocated to the isle of Bahrain. This interpretation is not without criticism, however, and other sources place Agarum on the isle of Failaka.[12]
Eastern Arabia was conquered by the emerging Rashidun Caliphate during the 7th century. It was later inherited by the Umayyads and Abbasids. In 899 the region came under the control of the Qarmatian leader Abu Tahir al-Jannabi[13] and was declared independent from the Abbasid Caliphate of Baghdad. Its capital was at al-Mu'miniya near modern Hofuf. By circa 1000, Al-Ahsa became the ninth largest city worldwide supporting 100,000 inhabitants.[14] In 1077, the Qarmatian state of Al-Ahsa was overthrown by the Uyunids. Al-Ahsa subsequently fell under the rule of the Bahrani dynasty of the Usfurids, followed by their relatives, the Jabrids, who became one of the most formidable powers in the region, retaking the islands of Bahrain from the princes of Hormuz. The last Jabrid ruler of Bahrain was Muqrin ibn Zamil.[citation needed]
In 1521, the Portuguese Empire conquered the Awal Islands (the islands that comprise present day Bahrain) from the Jabrid ruler Muqrin ibn Zamil.[15] The Jabrids struggled to maintain their position on the mainland in the face of the Ottomans and their tribal allies, the Muntafiq. In 1550, Al-Ahsa and nearby Qatif came under the sovereignty of the Ottoman Empire with SultanSuleiman I.[16] Al-Ahsa was nominally the Eyalet of Lahsa in the Ottoman administrative system and was usually a vassal of the Sublime Porte. Qatif was later lost to the Portuguese.[17] The Ottomans were expelled from Al-Ahsa in 1670,[16] and the region came under the Banu Khalid Emirate.
Al-Ahsa, along with Qatif, was incorporated into the WahhabistEmirate of Diriyah in 1795 but returned to Ottoman control in 1818 with an invasion ordered by Muhammad Ali of Egypt. The Banu Khalid were again installed as rulers of the region but, in 1830 the Emirate of Nejd retook the region.[18]
On 2 December 1922, Percy Cox officially notified Kuwait's Emir Sheikh Ahmad Al-Sabah that Kuwait's borders had been modified.[20] Earlier that year, Major John More, the British representative in Kuwait, had met with Ibn Saud to settle the border issue between Kuwait and Najd. The result of the meeting was the Uqair Protocol of 1922, in which Britain recognized ibn Saud's sovereignty over territories claimed by the emir of Kuwait. Al-Ahsa was taken from the Ottomans in 1913,[21] bringing the Al Sauds control of the Persian Gulf coast and what would become Saudi Arabia's vast oil reserves.[citation needed]
Al-Ahsa is part of the region known historically for its high skill in tailoring, especially in making bisht, a traditional men's cloak.[22] Al-Ahsa was one of the few areas in the Arabian Peninsula in which rice was grown.[23] In 1938, petroleum deposits were discovered near Dammam,[24][25] resulting in the rapid modernization of the region. By the early 1960s, oil production levels reached 1 million barrels (160,000 m3) per day. Today, Al-Ahsa is home to the largest conventional oil field in the world, the Ghawar Field.[26]
Al-Ahsa is known for its palm trees and date palms. Al-Ahsa has over 2.5 million palm trees which produce over 100 thousand tons of dates every year.[citation needed]
The oasis is a popular tourist destination for Qatari nationals, who would make the 160-km cross-border drive to visit local attractions, as well as to find bargains for food, spices and clothing in Al-Ahsa's bazaars. Economic ties were severely disrupted by the Qatar diplomatic crisis, which led to the closure of Saudi Arabia's land border with Qatar. With the crisis' resolution and border reopening in 2021, however, Qatari tourists have gradually returned to Al-Ahsa; albeit in smaller numbers, due to improved Qatari self-sufficiency in goods.[27]
A road between Oman and Saudi Arabia,[28][29] which goes through the Empty Quarter, was completed in September 2021.[30] Between 700 and 800 kilometres (430 and 500 miles) long, it extends from Al-Ahsa to the Omani town of Ibri. The Omani side of the road measures approximately 160 km (99 mi), and the Saudi side 580 km (360 mi).[28][29][30]
Al-Ahsa has a hot desert climate (Köppen Climate Classification: BWh), with long, extremely hot summers and short, very mild winters. The oasis has a very low annual precipitation of 83.3 mm (3.28 in), but receives a small amount of rain in winter and spring.
^Khaled al-Nashef [de]: "The Deities of Dilmun" (pp. 340–342, 346, 349), in Bahrain Through the Ages: The Archaeology, edited by Scheich ʿAbdāllah Bahrain, Haya Ali Khalifa, Shaikha Haya Ali Al Khalifa & Michael Rice. Routledge, 1986. ISBN978-0-7103-0112-3.
^Steffen Terp Laursen: Royal Mounds of A'ali in Bahrain: The Emergence of Kingship in Early Dilmun (pp. 430–433). ISD LLC, 2017. ISBN978-87-93423-19-0.
^M. Cetin (2010). "Cultural versus material: conservation issues regarding earth architecture in Saudi Arabia: the case of an Ottoman fort, Ibrahim Palace in Al-Houfuf". International Journal of Civil & Environmental Engineering. 10 (4): 8–14.
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