Tabriz in the context of "Central District (Tabriz County)"

A building or edifice is an enclosed structure with a roof, walls and often windows, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for numerous factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the concept, see Nonbuilding structure for contrast.

Buildings serve several societal needs – occupancy, primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical separation of the human habitat (a place of comfort and safety) from the outside (a place that may be harsh and harmful at times).

The Russo-Persian War of 1826–1828 was the last major military conflict between the Russian Empire and Qajar Iran, which was fought over territorial disputes in the South Caucasus region.

Initiated by Russian expansionist aims and intensified by Iranian resistance, the war witnessed significant military engagements, including the Battle of Ganja and Capture of Erivan. The Iranians were initially successful, catching the Russian forces of Yermolov off-guard. They were aided by local uprisings against Russian garrisons in Talish, Ganja, Shirvan, Shakki, and other areas. However Russian reinforcements under the newly appointed General Ivan Paskevich turned the war decisively in Russia's favor, capturing the important city of Tabriz in northwestern Iran.

The Treaty of Turkmenchay was an agreement between Qajar Iran and the Russian Empire, which concluded the Russo-Persian War (1826–1828). It was second of the series of treaties (the first was the 1813 Treaty of Gulistan and the last, the 1881 Treaty of Akhal) signed between Qajar Iran and Imperial Russia that forced Iran to cede or recognize Russian influence over the territories that formerly were part of Iran.

The treaty was signed on 22 February 1828 (5 Sha'ban 1243) in Torkamanchay (a village between Tabriz and Tehran). It made Iran cede the control of several areas in the South Caucasus to Russia: the Erivan Khanate, the Nakhchivan Khanate and the remainder of the Talysh Khanate. The boundary between Russia and Iran was set at the Aras River. These territories are now Armenia, the south of the Republic of Azerbaijan, Nakhchivan and Iğdır Province (now part of Turkey).

An astrolabe (Ancient Greek: ἀστρολάβος, romanized: astrolábos, lit. 'star-taker'; Arabic: ٱلأَسْطُرلاب, romanized: al-Asṭurlāb; Persian: ستاره‌یاب, romanized: Setāreyāb) is an astronomical instrument dating to ancient times. It serves as a star chart and physical model of the visible half-dome of the sky. Its various functions also make it an elaborate inclinometer and an analog calculation device capable of working out several kinds of problems in astronomy. In its simplest form it is a metal disc with a pattern of wires, cutouts, and perforations that allows a user to calculate astronomical positions precisely. It is able to measure the altitude above the horizon of a celestial body, day or night; it can be used to identify stars or planets, to determine local latitude given local time (and vice versa), to survey, or to triangulate. It was used in classical antiquity, the Byzantine Empire, the Islamic Golden Age, the European Middle Ages and the Age of Discovery for all these purposes.

The astrolabe, which is a precursor to the sextant,is effective for determining latitude on land or calm seas. Although it is less reliable on the heaving deck of a ship in rough seas, the mariner's astrolabe was developed to solve that problem.

Salm (Persian: سلم) or Sarm (Middle Persian) is a character in the Persian epic Shahnameh. He is the oldest son of legendary hero and king Fereydun. It is believed that his name was given to him by his father, after Salm chooses to seek safety and run instead of fighting the dragon that had attacked him and his brothers (the dragon was Fereydun himself who had disguised himself to test his sons).

When Fereydun decides to divide his kingdom among his sons, he gives Salm Anatolia and West. Salm and his brother Tur become jealous of their younger brother Iraj. They combine their forces against him and eventually murder the young prince. Years later Iraj’s grandson Manuchehr avenges his grandfather’s death by killing both Salm and Tur.

The Kipchaks, also spelled Qipchaqs, known as Polovtsians (Polovtsy) in Russian sources, were Turkic nomads and then a confederation that existed in the Middle Ages inhabiting parts of the Eurasian Steppe.

First mentioned in the eighth century as part of the Second Turkic Khaganate, they most likely inhabited the Altai region from where they expanded over the following centuries, first as part of the Kimek–Kipchak confederation and later as part of a confederation with the Cumans. There were groups of Kipchaks in the Pontic–Caspian steppe, China, Syr Darya, and Siberia. Cumania was conquered by the Mongol Empire in the early 13th century.

Islamic art is a part of Islamic culture and encompasses the visual arts produced since the 7th century CE by people who lived within territories inhabited or ruled by Muslim populations. Referring to characteristic traditions across a wide range of lands, periods, and genres, Islamic art is a concept used first by Western art historians in the late 19th century. Public Islamic art is traditionally non-representational, except for the widespread use of plant forms, usually in varieties of the spiralling arabesque. These are often combined with Islamic calligraphy, geometric patterns in styles that are typically found in a wide variety of media, from small objects in ceramic or metalwork to large decorative schemes in tiling on the outside and inside of large buildings, including mosques. Other forms of Islamic art include Islamic miniature painting, artefacts like Islamic glass or pottery, and textile arts, such as carpets and embroidery.

The early developments of Islamic art were influenced by Roman art, Early Christian art (particularly Byzantine art), and Sassanian art, with later influences from Central Asian nomadic traditions. Chinese art had a significant influence on Islamic painting, pottery, and textiles. From its beginnings, Islamic art has been based on the written version of the Quran and other seminal religious works, which is reflected by the important role of calligraphy, representing the word as the medium of divine revelation.

The capture of Erivan (or Erevan/Yerevan; Persian: فتح ایروان, romanized: Fath e Iravān; Russian: Взятие Эривани, romanized: Vzyatie Ėrivani) took place on 1 October 1827, during the Russo-Persian War of 1826–28. The city fell to the Russians after being besieged for a week and opened up the path for the eventual capture of Tabriz, the second largest city in Iran and an important trading post.