Islamic architecture

Islamic architecture encompasses a wide range of both secular and religious styles from the early history of Islam to the present day. What today is known as Islamic architecture was influenced by Roman, Byzantine, Persian and all other lands which the Muslims conquered in the 7th and 8th centuries. Further east, it was also influenced by Chinese and Indian architecture as Islam spread to Southeast Asia. It developed distinct characteristics in the form of buildings, and the decoration of surfaces with Islamic calligraphy and geometric and interlace patterned ornament. The principal Islamic architectural types for large or public buildings are: the Mosque, the Tomb, the Palace and the Fort. From these four types, the vocabulary of Islamic architecture is derived and used for other buildings such as public baths, fountains and domestic architecture.

Many of the buildings which are mentioned in this article are listed as World Heritage Sites. Some of them, like the Citadel of Aleppo, have suffered significant damage in the ongoing Syrian Civil War.

Characteristics
Assimilation of earlier traditions
Compared to Western European Francia, period Islamic architecture has preserved to a greater extent the architectural traditions of its preceding cultures. From the eighth to the eleventh century, Islamic architectural styles were influenced by two different ancient traditions:

Greco-Roman tradition: In particular, the regions of the newly conquered Byzantine Empire (Southwestern Anatolia, Syria, Egypt and the Maghreb) supplied architects, masons, mosaicists and other craftsmen to the new Islamic rulers. These artisans were trained in Byzantine architecture and decorative arts, and continued building and decorating in Byzantine style, which had developed out of Hellenistic and ancient Roman architecture.
Eastern tradition: Mesopotamia and Persia, despite adopting elements of Hellenistic and Roman representative style, retained their independent architectural traditions, which derived from Sasanian architecture and its predecessors.
The transition process between late Antiquity, or post-classical, and Islamic architecture is exemplified by archaeologic findings in North Syria and Palestine, the Bilad al-Sham of the Umayyad and Abbasid dynasties. In this region, late antique, or Christian, architectural traditions merged with the pre-Islamic Arabian heritage of the conquerors. Recent research on the history of Islamic art and architecture has revised a number of colonialistic ideas. Specifically, the following questions are currently subject to renewed discussions in the light of recent findings and new concepts of cultural history:

The existence of a linear development within the Islamic architecture;
the existence of an inter- and intracultural hierarchy of styles;
questions of cultural authenticity and its delineation.
Compared to earlier research, the assimilation and transformation of pre-existing architectural traditions is investigated under the aspect of mutual intra- and intercultural exchange of ideas, technologies and styles as well as artists, architects, and materials. In the area of art and architecture, the Rise of Islam is seen as a continuous transformation process leading from late Antiquity to the Islamic period. Early research into the area regarded the early Islamic architecture merely as a break with the past, from which apparently rose a distorted and less expressive form of art, or a degenerate imitation of the post-classical architectural forms. Modern concepts tend to regard the transition between the cultures rather as a selective process of informed appropriation and transformation. The Umayyads played a crucial role in this process of transforming and thereby enriching the existing architectural traditions, or, in a more general sense, of the visual culture of the nascent Islamic society.

Paradise garden
Gardens and water have for many centuries played an essential role in Islamic culture, and are often compared to the garden of Paradise. The comparison originates from the Achaemenid Empire. In his dialogue “Oeconomicus”, Xenophon has Socrates relate the story of the Spartan general Lysander’s visit to the Persian prince Cyrus the Younger, who shows the Greek his “Paradise at Sardis”. The classical form of the Persian Paradise garden, or the Charbagh, comprises a rectangular irrigated space with elevated pathways, which divide the garden into four sections of equal size:

One of the hallmarks of Persian gardens is the four-part garden laid out with axial paths that intersect at the garden’s centre. This highly structured geometrical scheme, called the chahar bagh, became a powerful metaphor for the organization and domestication of the landscape, itself a symbol of political territory.

A charbagh from Achaemenid time has been identified in the archaeological excavations at Pasargadae. The gardens of Chehel Sotoun (Isfahan), Fin Garden (Kashan), Eram Garden (Shiraz), Shazdeh Garden (Mahan), Dowlatabad Garden (Yazd), Abbasabad Garden (Abbasabad), Akbarieh Garden (South Khorasan Province), Pahlevanpour Garden, all in Iran, form part of the UNESCO World Heritage. Large Paradise gardens are also found at the Taj Mahal (Agra), and at Humayun’s Tomb (New Delhi), in India; the Shalimar Gardens (Lahore, Pakistan) or at the Alhambra and Generalife in Granada, Spain.

Courtyard (Sehan)
The traditional Islamic courtyard, a sehan (Arabic: صحن‎), is found in secular and religious structures.

When within a residence or other secular building is a private courtyard and walled garden. It is used for: the aesthetics of plants, water, architectural elements, and natural light; for cooler space with fountains and shade, and source of breezes into the structure, during summer heat; and a protected and proscribed place where the women of the house need not be covered in the hijab clothing traditionally necessary in public.
A sehan—courtyard is in within almost every mosque in Islamic architecture. The courtyards are open to the sky and surrounded on all sides by structures with halls and rooms, and often a shaded semi-open arcade. Sehans usually feature a centrally positioned ritual cleansing pool under an open domed pavilion called a howz. A mosque courtyard is used for performing ablutions, and a ‘patio’ for rest or gathering.
Hypostyle hall
A Hypostyle, i.e., an open hall supported by columns combined with a reception hall set at right angle to the main hall, is considered to be derived from architectural traditions of Achaemenid period Persian assembly halls (“apadana”). This type of building originated from the Roman-style basilica with an adjacent courtyard surrounded by colonnades, like Trajan’s Forum in Rome. The Roman type of building has developed out of the Greek agora. In Islamic architecture, the hypostyle hall is the main feature of the hypostyle mosque. One of the earliest hypostyle mosques is the Tarikhaneh Mosque in Iran, dating back to the 8th century.

Vaulting
In Islamic buildings, vaulting follows two distinct architectural styles: Whilst Umayyad architecture continues Syrian traditions of the 6th and 7th century, Eastern Islamic architecture was mainly influenced by Sasanian styles and forms.

Umayyad diaphragm arches and barrel vaults
In their vaulting structures, Umayyad period buildings show a mixture of ancient Roman and Persian architectural traditions. Diaphragm arches with lintelled ceilings made of wood or stone beams, or, alternatively, with barrel vaults, were known in the Levant since the classical and Nabatean period. They were mainly used to cover houses and cisterns. The architectural form of covering diaphragm arches with barrel vaults, however, was likely newly introduced from Iranian architecture, as similar vaulting was not known in Bilad al-Sham before the arrival of the Umayyads. However, this form was well known in Iran from early Parthian times, as exemplified in the Parthian buildings of Aššur. The earliest known example for barrel vaults resting on diaphragm arches from Umayyad architecture is known from Qasr Harane in Syria. During the early period, the diaphragm arches are built from coarsely cut limestone slabs, without using supporting falsework, which were connected by gypsum mortar. Later-period vaults were erected using pre-formed lateral ribs modelled from gypsum, which served as a temporal formwork to guide and center the vault. These ribs, which were left in the structure afterwards, do not carry any load. The ribs were cast in advance on strips of cloth, the impression of which can still be seen in the ribs today. Similar structures are known from Sasanian architecture, for example from the palace of Firuzabad. Umayyad-period vaults of this type were found in Amman Citadel and in Qasr Amra.

Islamic Spain
The double-arched system of arcades of the Mosque–Cathedral of Córdoba is generally considered to be derived from Roman aqueducts like the nearby aqueduct of Los Milagros. Columns are connected by horseshoe arches, and support pillars of brickwork, which are in turn interconnected by semicircular arches supporting the flat timberwork ceiling.

In later-period additions to the Mosque of Córdoba, the basic architectural design was changed: Horseshoe arches were now used for the upper row of arcades, which is now supported by five-pass arches. In sections which now supported domes, additional supporting structures were needed to bear the thrust of the cupolas. The architects solved this problem by the construction of intersecting three- or five-pass arches. The three domes spanning the vaults above the mihrab wall are constructed as ribbed vaults. Rather than meeting in the center of the dome, the ribs intersect one another off-center, forming an eight-pointed star in the center which is superseded by a pendentive dome.

The ribbed vaults of the mosque-cathedral of Córdoba served as models for later mosque buildings in the Islamic West of al-Andaluz and the Maghreb. At around 1000 AD, the Mezquita de Bab al Mardum (today: Mosque of Cristo de la Luz) in Toledo was constructed with a similar, eight-ribbed dome. Similar domes are also seen in the mosque building of the Aljafería of Zaragoza. The architectural form of the ribbed dome was further developed in the Maghreb: The central dome of the Great Mosque of Tlemcen, a masterpiece of the Almoravids built in 1082, has twelve slender ribs, the shell between the ribs is filled with filigree stucco work.

Islamic Iran(Persia)
Because of its long history of building and re-building, spanning the time from the Abbasids to the Qajar dynasty, and its excellent state of conservation, the Jameh Mosque of Isfahan provides an overview over the experiments Islamic architects conducted with complicated vaulting structures.

The system of squinches, which is a construction filling in the upper angles of a square room so as to form a base to receive an octagonal or spherical dome, was already known in Sasanian architecture. The spherical triangles of the squinches were split up into further subdivisions or systems of niches, resulting in a complex interplay of supporting structures forming an ornamental spatial pattern which hides the weight of the structure.

The “non-radial rib vault”, an architectural form of ribbed vaults with a superimposed spherical dome, is the characteristic architectural vault form of the Islamic East. From its beginnings in the Jameh Mosque of Isfahan, this form of vault was used in a sequence of important buildings up to the period of Safavid architecture. Its main characteristics are:

Four intersecting ribs, at times redoubled and intersected to form an eight-pointed star;
the omission of a transition zone between the vault and the supporting structure;
a central dome or roof lantern on top of the ribbed vault.
While intersecting pairs of ribs from the main decorative feature of Seljuk architecture, the ribs were hidden behind additional architectural elements in later periods, as exemplified in the dome of the Tomb of Ahmed Sanjar in Merv, until they finally disappeared completely behind the double shell of a stucco dome, as seen in the dome of Ālī Qāpū in Isfahan.

Domes
Based on the model of pre-existing Byzantine domes, the Ottoman Architecture developed a specific form of monumental, representative building: Wide central domes with huge diameters were erected on top of a centre-plan building. Despite their enormous weight, the domes appear virtually weightless. Some of the most elaborate domed buildings have been constructed by the Ottoman architect Mimar Sinan.

When the Ottomans had conquered Constantinople, they found a variety of Byzantine Christian churches, the largest and most prominent amongst them was the Hagia Sophia. The brickwork-and-mortar ribs and the spherical shell of the central dome of the Hagia Sophia were built simultaneously, as a self-supporting structure without any wooden centring. In the early Byzantine church of Hagia Irene, the ribs of the dome vault are fully integrated into the shell, similar to Western Roman domes, and thus are not visible from within the building. In the dome of the Hagia Sophia, the ribs and shell of the dome unite in a central medallion at the apex of the dome, the upper ends of the ribs being integrated into the shell: Shell and ribs form one single structural entity. In later Byzantine buildings, like the Kalenderhane Mosque, the Eski Imaret Mosque (formerly the Monastery of Christ Pantepoptes) or the Pantokrator Monastery (today: Zeyrek Mosque), the central medallion of the apex and the ribs of the dome became separate structural elements: The ribs are more pronounced and connect to the central medallion, which also stands out more pronouncedly, so that the entire construction gives the impression as if ribs and medallion are separate from, and underpin, the proper shell of the dome.

Mimar Sinan solved the structural issues of the Hagia Sophia dome by constructing a system of centrally symmetric pillars with flanking semi-domes, as exemplified by the design of the Süleymaniye Mosque (four pillars with two flanking shield walls and two semi-domes, 1550–1557), the Rüstem Pasha Mosque (eight pillars with four diagonal semi-domes, 1561–1563), and the Selimiye Mosque in Edirne (eight pillars with four diagonal semi-domes, 1567/8–1574/5). In the history of architecture, the structure of the Selimiye Mosque has no precedent. All elements of the building subordinate to its great dome.

Muqarnas
The architectural element of muqarnas developed in northeastern Iran and the Maghreb around the middle of the 10th century. The ornament is created by the geometric subdivision of a vaulting structure into miniature, superimposed pointed-arch substructures, also known as “honeycomb”, or “stalactite” vaults. Made from different materials like stone, brick, wood or stucco, its use in architecture spread over the entire Islamic world. In the Islamic West, muqarnas are also used to adorn the outside of a dome, cupola, or similar structure, whilst in the East is more limited to the interior face of a vault.

Ornaments
As a common feature, Islamic architecture makes use of specific ornamental forms, including mathematically complicated, elaborate geometric and interlace patterns, floral motifs like the arabesque, and elaborate calligraphic inscriptions, which serve to decorate a building, specify the intention of the building by the selection of the textual program of the inscriptions. For example, the calligraphic inscriptions adorning the Dome of the Rock include quotations from the Quran (e.g., Quran 19:33–35) which reference the miracle of Jesus and his human nature.

The geometric or floral, interlaced forms, taken together, constitute an infinitely repeated pattern that extends beyond the visible material world. To many in the Islamic world, they symbolize the concept of infinite proves of existence of one eternal God. The repetitiveness, simplicity contrasted with complexity and percision suggests that our complex universe is only one of the many manifestations of the infinitely obvious and present Allah, the one God. Furthermore, the Islamic artist conveys a definite spirituality without the iconography of Christian art. Non-figural ornaments are used in mosques and buildings around the Muslim world, and it is a way of decorating using beautiful, embellishing and repetitive Islamic art instead of using pictures of humans and animals (which some Muslims believe is forbidden (Haram) in Islam).

Instead of recalling something related to the reality of the spoken word, calligraphy for the Muslim is a visible expression of spiritual concepts. Calligraphy has arguably become the most venerated form of Islamic art because it provides a link between the languages of the Muslims with the religion of Islam. The holy book of Islam, al-Qur’ān, has played a vital role in the development of the Arabic language, and by extension, calligraphy in the Arabic alphabet. Proverbs and complete passages from the Qur’an are still active sources for Islamic calligraphy. Contemporary artists in the Islamic world draw on the heritage of calligraphy to use calligraphic inscriptions or abstractions in their work.

Architectural forms
Many forms of Islamic architecture have evolved in different regions of the Islamic world. Notable Islamic architectural types include the early Abbasid buildings, T-Type mosques, and the central-dome mosques of Anatolia. The oil-wealth of the 20th century drove a great deal of mosque construction using designs from leading modern architects.

Arab-plan or hypostyle mosques are the earliest type of mosques, pioneered under the Umayyad Dynasty. These mosques are square or rectangular in plan with an enclosed courtyard and a covered prayer hall. Historically, because of the warm Mediterranean and Middle Eastern climates, the courtyard served to accommodate the large number of worshippers during Friday prayers. Most early hypostyle mosques have flat roofs on top of prayer halls, necessitating the use of numerous columns and supports. One of the most notable hypostyle mosques is the Mezquita in Córdoba, Spain, as the building is supported by over 850 columns. Frequently, hypostyle mosques have outer arcades so that visitors can enjoy some shade. Arab-plan mosques were constructed mostly under the Umayyad and Abbasid dynasties; subsequently, however, the simplicity of the Arab plan limited the opportunities for further development, and as a result, these mosques gradually fell out of popularity.

The Ottomans introduced central dome mosques in the 15th century and have a large dome centered over the prayer hall. In addition to having one large dome at the center, there are often smaller domes that exist off-center over the prayer hall or throughout the rest of the mosque, where prayer is not performed. This style was heavily influenced by the Byzantine religious architecture with its use of large central domes.

Specific architectural elements
Islamic architecture may be identified with the following design elements, which were inherited from the first mosque buildings (originally a feature of the Masjid al-Nabawi).

Minarets or towers (these were originally used as torch-lit watchtowers, as seen in the Great Mosque of Damascus; hence the derivation of the word from the Arabic nur, meaning “light”). The minaret of the Great Mosque of Kairouan in Tunisia is considered as the oldest surviving minaret in the world. It has the shape of a square massive tower of three superimposed sections.
A four-iwan plan, with three subordinate halls and one principal one that faces toward Mecca
Mihrab or prayer niche on an inside wall indicating the direction to Mecca.
Domes and Cupolas. In South East Asia (Indonesia and Malaysia), these are very recent additions.
Pishtaq is the formal gateway to the iwan, usually the main prayer hall of a mosque, a vaulted hall or space, walled on three sides, with one end entirely open; a Persian term for a portal projecting from the facade of a building, usually decorated with calligraphy bands, glazed tilework, and geometric designs.
Iwans to intermediate between different pavilions.

Towns and cities

Urban and nomadic life according to Ibn Khaldun
During its history, the society of the pre-modern Islamic world was dominated by two important social contexts, nomadic life and Urbanism. The historian and politician Ibn Khaldun thoroughly discusses both concepts in his book Muqaddimah. According to him, the way of life and culture of the rural bedouin nomads and the townspeople are opposed in a central social conflict. Ibn Khaldun explains the rise and fall of civilizations by his concept of Asabiyyah (“bond of cohesion”, or “family loyalty”), as exemplified by the rule of the caliphs. Bedouins, being the nomadic inhabitants of the steppe and the desert, are interconnected by strong bonds of asabiyyah and firm religious beliefs. These bonds tend to slacken in urban communities over some generations. In parallel, by losing their asabiyyah, the townspeople also lose the power to defend themselves, and fall victims to more aggressive tribes which may destroy the city and set up a new ruling dynasty, which over time is subject to the same weakening of power again.

Experiments with the hellenistic Ideal city
The antique concept of the architecture of a Greek polis or Roman civitas is based on a structure of main and smaller roads running through the entire city, and dividing it into quarters. The streets are oriented towards public buildings like a palace, temple, or a public square. Two main roads, (cardo and decumanus) cross each other at right angles in the center of the city. A few cities were founded during the early Islamic Umayyad Caliphate, the outlines of which were based on the Ancient Roman concept of the Ideal city. An example of a city planned according to Hellenistic concepts was excavated at Anjar in Lebanon.

Transformation of conquered towns
More often than founding new cities, the new Islamic rulers took over existing towns, and transformed them according to the needs of the new Islamic society. This process of transformation proved to be decisive for the development of the traditional Islamic city, or Medina. The principle of arranging buildings is known as “horizontal spread”. Residencies and public buildings as well as private housing tend to be laid out separately, and are not directly related to each other architectonically. Archaeological excavations at the city of Jerash, the Gerasa of Antiquity, have revealed how the Umayyads have transformed the city plan.

Urban morphology of the Medina
The architecture of the “oriental”-Islamic town is based on cultural and sociological concepts which differ from those of European cities. In both cultures, a distinction is made between the areas used by the rulers and their government and administration, public places of everyday common life, and the areas of private life. Whilst the structures and concepts of European towns originated from a sociological struggle to gain basic rights of freedom – or town privileges – from political or religious authorities during the Middle Ages, an Islamic town or city is fundamentally influenced by the preservation of the unity of secular and religious life throughout time.

The fundamental principle of the Islamic society is the ummah, or ummat al-Islamiyah (Arabic: الأمة الإسلامية‎), the community of Muslims of whom each individual is equally submitted to Allah under the common law of sharia, which also subjected the respective ruler, at least nominally. In Abbasid times, some cities like the Round city of Baghdad were constructed from scratch, set up to a plan which focused on the caliph’s residence, located in the very centre of the city, with main roads leading radially from the city gates to the central palace, dividing individual tribal sections with no interconnection, and separated from each other by radial walls. However, these efforts were of short duration only, and the original plan soon disappeared and gave way to succeeding buildings and architectural structures.

In a medina, palaces and residences as well as public places like mosque-madrasa-hospital complexes and private living spaces rather coexist alongside each other. The buildings tend to be more inwardly oriented, and are separated from the surrounding “outside” either by walls or by the hierarchical ordering of the streets, or both. Streets tend to lead from public main roads to cul-de-sac byroads and onwards into more private plots, and then end there. There are no, or very few, internal connections between different quarters of the city. In order to move from one quarter to the next, one has to go back to the main road again.

Within a city quarter, byroads lead towards individual building complexes or clusters of houses. The individual house is frequently also oriented towards an inner atrium, and enclosed by walls, which mostly are unadorned, unlike European outward-oriented, representative facades. Thus, the spatial structure of a medina essentially reflects the ancient nomadic tradition of living in a family group or tribe, held together by asabiyya, strictly separated from the “outside”. In general, the morphology of an Islamic medina is granting – or denying – access according to the basic concept of hierarchical degrees of privacy. The inhabitants move from public space to the living quarters of their tribe, and onwards to their family home. Within a family house, there are again to be found common and separate spaces, the latter, and most private, usually reserved for women and children. In the end, only the family heads have free and unlimited access to all rooms and areas of ther private home, as opposed to the more European concept of interconnecting different spaces for free and easy access. The hierarchy of privacy thus guides and structurizes the entire social life in a medina, from the caliph down to his most humble subject, from the town to the house.

Frontier fortresses and towns

Misr, Ribat
In the frontier area of the Arabic expansion, military forts (Misr, Pl. Arabic: أمصار‎, amṣār), or Ribat (Arabic: رباط‎ ribāṭ, fortress) were founded. The structure and function of a misr is similar to an ancient Roman Colonia. Like a frontier colony, the fortress served as a base for further conquests. Arabian military forts of this type were frequently built in the vicinity of an older town from Antiquity or from Byzantine times. They frequently were of square format.

Rather than maintaining their original purpose to serve as a military base, many amṣār developed into urbane and administrative centers. In particular, this happened in the case of the Iraqi cities of Kufa and Basra, which became known as “al-miṣrān” (“the forts”), but also with Fustat and Kairouan in North Africa.

Qaṣr
Qaṣr (Arabic: قصر‎, qaṣr; Pl. Arabic: قصور‎, quṣūr) means palace, castle or (frontier) fort. Fortresses from Late Antiquity often continued to be in use, whilst their function changed during time. Some quṣūr were already used as Castra during Roman times, and were part of the fortifications of the North African Limes. Already during the Ancient Roman times, castra did not only serve as fortifications, but also as markets and meeting points for the tribes living beyond the border.

Smaller quṣūr are found in modern Jordan, and include Qasr Al-Hallabat (located 50 km east of Amman), Qasr Bushir (15 km north of Lajjun), the castle of Daganiya (45 km north of Ma’an) and Odruh (22 km east of Wadi Musa). After the Limes Arabicus was abandoned by the Roman Empire, many of the castra continued to be in use. This continuity was subject to archaeological investigations in the fort of Qasr al-Hallabat, which at different times served as a Roman castrum, Christian cenobitic monastery, and finally as an Umayyad Qasr. Qasr Al-Kharanah is one of the earliest known Desert castles, its architectural form clearly demonstrates the influence of Sasanian architecture.

According to a hypothesis developed by Jean Sauvaget, the umayyad quṣūr played a role in the systematic agricultural colonisation of the uninhabited frontier areas, and, as such, continue the colonisation strategy of earlier Christian monks and the Ghassanids. The Umayyads, however, increasingly oriented their political strategy towards a model of Client politics, of mutual interdependence and support. After the Umayyad conquest, the quṣūr lost their original function and were either abandoned or continued to serve as local market places and meeting points until the tenth century. Another type of Islamic fortress is Qalat.

Source From Wikipedia