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Bridge Of Valerian
The Band-e Kaisar (), Pol-e Kaisar ("Caesar's bridge"), Bridge of Valerian or Shadorvan was an ancient arch bridge in the city of Shushtar, Khuzestan province, Iran, and the first in the country to combine it with a dam. Built by the Sassanids during the 3rd century CE, using Roman prisoners of war as the workforce, it is the easternmost example of Roman bridge design and Roman dam. Its dual-purpose design exerted a profound influence on Iranian civil engineering and was instrumental in developing Sassanid water management techniques. The approximately 500m long overflow dam over the Karun, Iran's most effluent river, was the core structure of the Shushtar Historical Hydraulic System () from which the city derived its agricultural productivity. The arched superstructure carried across the important road between Pasargadae and the Sassanid capital Ctesiphon. Repaired repeatedly throughout the Islamic period, the dam bridge remained in use until the late 19th century.; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valerian (emperor)
Valerian ( ; ; – 260 or 264) was Roman emperor from 253 to spring 260 AD. Valerian is known as the first Roman emperor to have been taken captive in battle, captured by the Sassanid Empire, Persian emperor Shapur I after the Battle of Edessa, causing shock and instability throughout the Roman Empire. The unprecedented event and his unknown fate generated a variety of different reactions and "new narratives about the Roman Empire in diverse contexts". Biography Origins and rise to power Unlike many of the would-be emperors and rebels who vied for imperial power during the Crisis of the Third Century, Valerian was of a noble and traditional Roman Senate, senatorial family. Details of his early life are sparse, except for his marriage to Egnatia Mariniana, with whom he had two sons: Publius Licinius Egnatius Gallienus (his co-emperor and later successor) and Licinius Valerianus (brother of Gallienus), Licinius Valerianus. Valerian was Roman consul, consul for the first time eit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iran
Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the northeast, Afghanistan to the east, Pakistan to the southeast, and the Gulf of Oman and the Persian Gulf to the south. With a Ethnicities in Iran, multi-ethnic population of over 92 million in an area of , Iran ranks 17th globally in both List of countries and dependencies by area, geographic size and List of countries and dependencies by population, population. It is the List of Asian countries by area, sixth-largest country entirely in Asia and one of the world's List of mountains in Iran, most mountainous countries. Officially an Islamic republic, Iran is divided into Regions of Iran, five regions with Provinces of Iran, 31 provinces. Tehran is the nation's Capital city, capital, List of cities in Iran by province, largest city and financial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Masudi
al-Masʿūdī (full name , ), –956, was a historian, geographer and traveler. He is sometimes referred to as the "Herodotus of the Arabs". A polymath and prolific author of over twenty works on theology, history (Islamic and universal), geography, natural science and philosophy, his celebrated magnum opus '' The Meadows of Gold'' () combines universal history with scientific geography, social commentary and biography. Birth, travels and literary output Apart from what al-Mas'udi writes of himself little is known. Born in Baghdad, he was descended from Abdullah Ibn Mas'ud, a companion of Islamic prophet Muhammad. It is believed that he was a member of Banu Hudhayl tribe of Arabs. Al-Masudi mentions a number of scholar associates he encountered during his journeys: Al-Masʿudi may have reached Sri Lanka and China although he is known to have met Abu Zayd al-Sirafi on the coast of the Persian Gulf and received information on China from him.[Mas‘udi. ''The Meadows of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muhammad Ibn Jarir Al-Tabari
Abū Jaʿfar Muḥammad ibn Jarīr ibn Yazīd al-Ṭabarī (; 839–923 CE / 224–310 AH), commonly known as al-Ṭabarī (), was a Sunni Islam, Sunni Muslim ulama, scholar, polymath, Islamic history, historian, tafsir, exegete, faqīh, jurist, and aqidah, theologian from Amol, Tabaristan, present-day Iran. Among the most prominent figures of the Islamic Golden Age, al-Tabari is widely known for his historical works and expertise in Quran, Quranic exegesis, and has been described as "an impressively prolific polymath".Lindsay Jones (ed.), ''Encyclopedia of religion'', volume 13, Macmillan Reference USA, 2005, p. 8943 He authored works on a diverse range of subjects, including world history (field), world history, Arabic poetry, poetry, lexicography, Arabic grammar, grammar, Islamic ethics, ethics, Islamic mathematics, mathematics, and Islamic medicine, medicine. Among his most famous and influential works are his Quranic commentary, ''Tafsir al-Tabari'', and historical chronicl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ab-i Gargar
Āb-i Gargar (known in medieval Arabic as ''Masruqān'') is a canal in Iran. On this canal lies the medieval town of ʿAskar Mukram.Matthew S. Gordon, 'ʿAskar Mukram', ''Encyclopaedia of Islam'', 3rd edn, ed. by Kate Fleet and others (Leiden: Brill, 2007-), . References {{coord missing, Iran Canals in Iran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectare
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, square metres (), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare (" hecto-" + "are") was thus 100 ''ares'' or km2 ( square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa () and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Edessa
The Battle of Edessa took place between the armies of the Roman Empire under the command of Emperor Valerian (emperor), Valerian and the Sasanian Empire under Shapur I, in Edessa, Mesopotamia, Edessa (now the Turkish city of Urfa) in 260. The Roman army was defeated and captured in its entirety by the Sasanian forces; for the first time, a Roman emperor was taken prisoner. Background and prelude Prior to the battle, Shapur I had penetrated several times deeply into Roman territory, conquering and plundering Antioch in Syria (Roman province), Syria in 253 or 256. After defeating the usurper Aemilianus and assuming imperial power for himself, Valerian arrived in the eastern provinces as soon as he could (254 or 255) and gradually restored order. Soon he had to confront a naval Gothic invasion in northern Asia Minor. The Goths ravaged Pontus and moved south into Cappadocia. An attempt by Valerian and his army in Antiocheia to intercept them failed because of the Plague of Cyprian, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Heritage Site
World Heritage Sites are landmarks and areas with legal protection under an treaty, international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural heritage around the world considered to be of outstanding value to humanity". To be selected, a World Heritage Site is nominated by its host country and determined by the UNESCO's World Heritage Committee to be a unique landmark which is geographically and historically identifiable, having a special cultural or physical significance, and to be under a sufficient system of legal protection. World Heritage Sites might be ancient ruins or historical structures, buildings, cities, deserts, forests, islands, lakes, monuments, mountains or wilderness areas, and others. A World Heritage Site may signify a remarkable accomplishment of humankind and serve as evidence of humanity's intellectual history on the planet, or it might be a place of grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNESCO
The United Nations Educational, Scientific and Cultural Organization (UNESCO ) is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) with the aim of promoting world peace and International security, security through international cooperation in education, arts, sciences and culture. It has 194 Member states of UNESCO, member states and 12 associate members, as well as partners in the Non-governmental organization, non-governmental, Intergovernmental organization, intergovernmental and private sector. Headquartered in Paris, France, UNESCO has 53 regional field offices and 199 National Commissions for UNESCO, national commissions. UNESCO was founded in 1945 as the successor to the League of Nations' International Committee on Intellectual Cooperation.English summary). UNESCO's founding mission, which was shaped by the events of World War II, is to advance peace, sustainable development and human rights by facilitating collaboratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Iran
The history of Iran (also known as Name of Iran, Persia) is intertwined with Greater Iran, which is a socio-cultural region encompassing all of the areas that have witnessed significant settlement or influence exerted by the Iranian peoples and the Iranian languages chiefly the Persians and the Persian language. Central to this region is the Iranian plateau, now largely covered by Iran, modern Iran. The most pronounced impact of Iranian history can be seen stretching from Anatolia in the west to the Indus Valley in the east, including the Levant, Mesopotamia, the Caucasus, and parts of Central Asia. To varying degrees, it also overlaps or mingles with the histories of many other major civilizations, such as History of India, India, History of China, China, History of Greece, Greece, Ancient Rome, Rome, and History of Egypt, Egypt. Iran is home to one of the world's oldest continuous major civilizations, with historical and urban settlements dating back to 4000 BC. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shushtar Historical Hydraulic System
The Shushtar Historical Hydraulic System () is a complex irrigation system of the island city Shushtar from the Sasanian era. It consists of 13 dams, bridges, canals and structures which work together as a hydraulic system. Located in Iran's Khuzestan province.Shushtar , world heritage sites, retrieved on 1 May 2010. It was registered on 's list of in 2009 and is Iran's 10th cultural heritage site to be registered on the United Nations' list. This engineering masterpiece is unique both in Iran and in the world. The Sassanids, whose econo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weir
A weir or low-head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the water level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs. There are many weir designs, but commonly water flows freely over the top of the weir crest before cascading down to a lower level. There is no single definition as to what constitutes a weir. ''Weir'' can also refer to the skimmer found in most in-ground swimming pools, which controls the flow of water pulled into the filtering system. Etymology The word likely originated from Middle English ''were'', Old English ''wer'', a derivative of the root of the verb ''werian,'' meaning "to defend, dam". The German cognate is ''Wehr'', which means the same as English weir. Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more Navigability, navigable by boat. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
