Architecture of Mesopotamia in the context of "Achaemenid architecture"

Islamic architecture comprises the architectural styles of buildings associated with Islam. It encompasses both secular and religious styles from the early history of Islam to the present day. The Islamic world encompasses a wide geographic area historically ranging from western Africa and Europe to eastern Asia. Certain commonalities are shared by Islamic architectural styles across all these regions, but over time different regions developed their own styles according to local materials and techniques, local dynasties and patrons, different regional centers of artistic production, and sometimes different religious affiliations.

Early Islamic architecture was influenced by Roman, Byzantine, Iranian, and Mesopotamian architecture and all other lands which the early Muslim conquests conquered in the seventh and eighth centuries. Later it developed distinct characteristics in the form of buildings and in the decoration of surfaces with Islamic calligraphy, arabesques, and geometric motifs. New architectural elements like minarets, muqarnas, and multifoil arches were invented. Common or important types of buildings in Islamic architecture include mosques, madrasas, tombs, palaces, hammams (public baths), Sufi hospices (e.g. khanqahs or zawiyas), fountains and sabils, commercial buildings (e.g. caravanserais and bazaars), and military fortifications.

Abbasid architecture developed in the Abbasid Caliphate (750 to 1258 CE), primarily in its heartland of Mesopotamia (Iraq). The great changes of the Abbasid era can be characterized as at the same time political, geo-political and cultural. The Abbasid period starts with the destruction of the Umayyad ruling family and its replacement by the Abbasids, and the position of power is shifted to the Mesopotamian area. As a result, there was a corresponding displacement of the influence of classical and Byzantine artistic and cultural standards in favor of local Mesopotamian models as well as Persian. The Abbasids evolved distinctive styles of their own, particularly in decoration. This occurred mainly during the period corresponding with their power and prosperity between 750 and 932.

Abbasid architecture was an important formative stage in wider Islamic architecture. The early caliphate's great power and unity allowed architectural features and innovations, such as minarets and carved stucco motifs, to spread quickly across the vast territories under its control. One of the most important architectural activities during this time was the construction of new capital cities or administrative centers (a tradition also continued from earlier Mesopotamian and Persian rulers), such as the Round City of Baghdad, founded in 762, and Samarra, founded in 836. The Abbasids favored mud brick and baked brick for construction, allowing for enormous architectural complexes to be built at relatively low cost, as most clearly exemplified by Samarra, which was made up of vast palaces and monumental mosques spread across some 40 km (25 mi).