Four-centred Arch
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Four-centred Arch
A four-centered arch is a low, wide type of arch with a pointed apex. Its structure is achieved by drafting two arcs which rise steeply from each springing point on a small radius, and then turning into two arches with a wide radius and much lower springing point. It is a pointed sub-type of the general flattened depressed arch. This type of arch uses space efficiently and decoratively when used for doorways. It is also employed as a wall decoration in which arcade and window openings form part of the whole decorative surface. Two of the most notable types are known as the Persian arch, which is moderately "depressed" and found in Islamic architecture, and the Tudor arch, which is much flatter and found in English architecture. Another variant, the keel arch, has partially straight rather than curved sides and developed in Fatimid architecture. Use in Islamic architecture The four-centered arch is widely used in Islamic architecture, originally employed by the Abbasids and la ...
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Four-Centred Arch
A four-centered arch is a low, wide type of arch with a pointed apex. Its structure is achieved by drafting two arcs which rise steeply from each springing point on a small radius, and then turning into two arches with a wide radius and much lower springing point. It is a pointed sub-type of the general flattened depressed arch. This type of arch uses space efficiently and decoratively when used for doorways. It is also employed as a wall decoration in which arcade and window openings form part of the whole decorative surface. Two of the most notable types are known as the Persian arch, which is moderately "depressed" and found in Islamic architecture, and the Tudor arch, which is much flatter and found in English architecture. Another variant, the keel arch, has partially straight rather than curved sides and developed in Fatimid architecture. Use in Islamic architecture The four-centered arch is widely used in Islamic architecture, originally employed by the Abbasids and la ...
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Ghurid Dynasty
The Ghurid dynasty (also spelled Ghorids; fa, دودمان غوریان, translit=Dudmân-e Ğurīyân; self-designation: , ''Šansabānī'') was a Persianate dynasty and a clan of presumably eastern Iranian Tajik origin, which ruled from the 10th-century to 1215. The Ghurids were centered in the Ghor of present-day central Afghanistan, where they initially started out as local chiefs. They gradually converted to Sunni Islam from Buddhism after the conquest of Ghor by the Ghaznavid ruler Mahmud of Ghazni in 1011. The dynasty ultimately overthrew the Ghaznavid Empire when Muhammad of Ghor conquered the last Ghaznavid principality of Lahore in 1186 from Khusrau Malik. The Ghurids initially ruled as vassals of the Ghaznavids and later of the Seljuks. However, during the early twelfth century the long-standing rivalry between the Seljuks and Ghaznavids created a power vacuum in Khurasan which the Ghurids took advantage of and began their territorial expansion. Ala al-Din Hu ...
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Corbel Arch
A corbel arch (or corbeled / corbelled arch) is an arch-like construction method that uses the architectural technique of corbeling to span a space or void in a structure, such as an entranceway in a wall or as the span of a bridge. A corbel vault uses this technique to support the superstructure of a building's roof. A corbel arch is constructed by offsetting successive horizontal courses of stone (or brick) beginning at the springline of the walls (the point at which the walls break off from verticality to form an arc toward the apex at the archway's center) so that they project towards the archway's center from each supporting side, until the courses meet at the apex of the archway (often, the last gap is bridged with a flat stone). For a corbeled vault covering, the technique is extended in three dimensions along the lengths of two opposing walls. Although an improvement in load-bearing efficiency over the post and lintel design, corbeled arches are not entirely self-suppo ...
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Cairo
Cairo ( ; ar, القاهرة, al-Qāhirah, ) is the capital of Egypt and its largest city, home to 10 million people. It is also part of the largest urban agglomeration in Africa, the Arab world and the Middle East: The Greater Cairo metropolitan area, with a population of 21.9 million, is the 12th-largest in the world by population. Cairo is associated with ancient Egypt, as the Giza pyramid complex and the ancient cities of Memphis and Heliopolis are located in its geographical area. Located near the Nile Delta, the city first developed as Fustat, a settlement founded after the Muslim conquest of Egypt in 640 next to an existing ancient Roman fortress, Babylon. Under the Fatimid dynasty a new city, ''al-Qāhirah'', was founded nearby in 969. It later superseded Fustat as the main urban centre during the Ayyubid and Mamluk periods (12th–16th centuries). Cairo has long been a centre of the region's political and cultural life, and is titled "the city of a thousand m ...
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Al-Salih Tala'i Mosque
The Mosque of al-Salih Tala'i ( ar, مسجد الصالح طلائع) is a late Fatimid-era mosque built by the vizier Tala'i ibn Ruzzik in 1160. It is located south of Bab Zuweila, just outside the southern entrance to the old walled city of Cairo. History Construction and context The mosque was commissioned by the Fatimid vizier Tala'i ibn Ruzzik in 1160. Tala'i was one of the last powerful and competent viziers who maintained a level of stability in the Fatimid Empire in its last decades. As the Fatimid Caliphate was dissolved in 1171, this mosque is the last major Fatimid monument to have been built (and which still survives). Some of the mosque's original decorative elements continued to appear in post-Fatimid architecture in Cairo.O'Kane, Bernard (with contributions by Mohamed Abbas and Iman R. Abdulfattah). 2012. ''The Illustrated Guide to the Museum of Islamic Art in Cairo''. Cairo, New York: The American University in Cairo Press, p. 80. The Fatimid dynasty were Is ...
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Raqqa
Raqqa ( ar, ٱلرَّقَّة, ar-Raqqah, also and ) (Kurdish languages, Kurdish: Reqa/ ڕەقە) is a city in Syria on the northeast bank of the Euphrates River, about east of Aleppo. It is located east of the Tabqa Dam, Syria's largest dam. The Hellenistic, Roman, and Byzantine city and bishopric Callinicum (formerly a Latin and now a Maronite Catholic titular see) was the capital of the Abbasid Caliphate between 796 and 809, under the reign of Harun al-Rashid. It was also the capital of the Territory of the Islamic State, Islamic State from 2014 to 2017. With a population of 531,952 based on the 2021 official census, Raqqa is the sixth largest city in Syria. During the Syrian Civil War, the city was captured in 2013 by the Syrian opposition and then by the Islamic State. ISIS made the city its capital in 2014. As a result, the city was hit by airstrikes from the Syrian government, Russia, the United States, and Military intervention against ISIL, several other countries. Mos ...
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Baghdad Gate
Baghdad (; ar, بَغْدَاد , ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon and the Sassanid Persian capital of Ctesiphon. In 762 CE, Baghdad was chosen as the capital of the Abbasid Caliphate, and became its most notable major development project. Within a short time, the city evolved into a significant cultural, commercial, and intellectual center of the Muslim world. This, in addition to housing several key academic institutions, including the House of Wisdom, as well as a multiethnic and multi-religious environment, garnered it a worldwide reputation as the "Center of Learning". Baghdad was the largest city in the world for much of the Abbasid era during the Islamic Golden Age, peaking at a population of more than a million. The city was largely destroyed at the hands of the Mongol Empire in 1258, resulting in a decline that would linger through many centu ...
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Mamluk Architecture
Mamluk architecture was the architectural style under the Mamluk Sultanate (1250–1517), which ruled over Egypt, the Levant, and the Hijaz from their capital, Cairo. Despite their often tumultuous internal politics, the Mamluk sultans were prolific patrons of architecture and contributed enormously to the fabric of historic Cairo. The Mamluk period, particularly in the 14th century, oversaw the peak of Cairo's power and prosperity. Their architecture also appears in cities such as Damascus, Jerusalem, Aleppo, Tripoli, and Medina. Major Mamluk monuments typically consisted of multi-functional complexes which could combine various elements such as a patron's mausoleum, a madrasa, a khanqah (Sufi lodge), a mosque, a sabil, or other charitable functions found in Islamic architecture. These complexes were built with increasingly complicated floor plans which reflected the need to accommodate limited urban space as well as a desire to visually dominate their urban environment. Their ...
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Ayyubid Dynasty
The Ayyubid dynasty ( ar, الأيوبيون '; ) was the founding dynasty of the medieval Sultan of Egypt, Sultanate of Egypt established by Saladin in 1171, following his abolition of the Fatimid Caliphate, Fatimid Caliphate of Egypt. A Sunni Muslim of Kurds, Kurdish origin, Saladin had originally served Nur ad-Din (died 1174), Nur ad-Din of Syria, leading Nur ad-Din's army in battle against the Crusaders in Fatimid Egypt, where he was made Vizier. Following Nur ad-Din's death, Saladin was proclaimed as the first Sultan of Egypt, and rapidly expanded the new sultanate beyond the frontiers of Egypt to encompass most of the Levant (including the former territories of Nur ad-Din), in addition to Hijaz, Yemen, northern Nubia, Tripolitania, Tarabulus, Cyrenaica, southern Anatolia, and northern Iraq, the homeland of his Kurdish family. By virtue of his sultanate including Hijaz, the location of the Islamic holy cities of Mecca and Medina, he was the first ruler to be hailed as the Cus ...
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Blind Arch
A blind arch is an arch found in the wall of a building that has been infilled with solid construction and so cannot serve as a passageway, door or window.''A Dictionary of Architecture''; Fleming, John; Honour, Hugh & Pevsner, Nikolaus (1966) The term is most often associated with masonry wall construction, but blind arches are also found (or simulated) in other types of construction such as light frame construction. Some blind arches were originally built as open arches and infilled later. Others were originally built with solid infill as intentional stylistic elements. See also * Blind arcade * Lombard band * Lesene A lesene, also called a pilaster strip, is an architectural term for a narrow, low-relief vertical pillar on a wall. It resembles a pilaster, but does not have a base or capital. It is typical in Lombardic and Rijnlandish architectural building ... References External links Description and photo
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Iwan
An iwan ( fa, ایوان , ar, إيوان , also spelled ivan) is a rectangular hall or space, usually vaulted, walled on three sides, with one end entirely open. The formal gateway to the iwan is called , a Persian term for a portal projecting from the facade of a building, usually decorated with calligraphy bands, glazed tilework, and geometric designs. Since the definition allows for some interpretation, the overall forms and characteristics can vary greatly in terms of scale, material, or decoration. Iwans are most commonly associated with Islamic architecture; however, the form is Iranian in origin and was invented much earlier and fully developed in Mesopotamia around the third century CE, during the Parthian period of Persia. Etymology ''Iwan'' is a Persian word which was subsequently borrowed into other languages such as Arabic and Turkish. Its etymology is unclear. A theory by scholars like Ernst Herzfeld and W. B. Henning proposed that the root of this term is Old ...
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Arcade (architecture)
An arcade is a succession of contiguous arches, with each arch supported by a colonnade of columns or piers. Exterior arcades are designed to provide a sheltered walkway for pedestrians. The walkway may be lined with retail stores. An arcade may feature arches on both sides of the walkway. Alternatively, a blind arcade superimposes arcading against a solid wall. Blind arcades are a feature of Romanesque architecture that influenced Gothic architecture. In the Gothic architectural tradition, the arcade can be located in the interior, in the lowest part of the wall of the nave, supporting the triforium and the clerestory in a cathedral, or on the exterior, in which they are usually part of the walkways that surround the courtyard and cloisters. Many medieval arcades housed shops or stalls, either in the arcaded space itself, or set into the main wall behind. From this, "arcade" has become a general word for a group of shops in a single building, regardless of the architectural f ...
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