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Band-e Kaisar
The Band-e Kaisar (), Pol-e Kaisar ("Caesar's bridge"), Bridge of Valerian or Shadirwan was an ancient arch bridge in Shushtar, Iran, and the first in the country to combine it with a dam. Built by the Sassanids, using Roman prisoners of war as workforce, in the 3rd century AD on Sassanid order, it was also the most eastern example of Roman bridge design and Roman dam, lying deep in Persian territory. Its dual-purpose design exerted a profound influence on Iranian civil engineering and was instrumental in developing Sassanid water management techniques. The approximately 500 m long overflow dam over the Karun, Iran's most effluent river, was the core structure of the Shushtar Historical Hydraulic System (سازههای آبی شوشتر) from which the city derived its agricultural productivity, and which has been designated by the UNESCO as Iran's 10th World Heritage Site in 2009. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valerian (emperor)
Valerian (; la, Publius Licinius Valerianus; c. 199 – 260 or 264) was Roman emperor from 253 to spring 260 AD. He persecuted Christians and was later taken captive by the Persian emperor Shapur I after the Battle of Edessa, becoming the first Roman emperor to be captured as a prisoner of war, causing shock and instability throughout the Roman Empire. The unprecedented event and the unknown fate of the captured emperor 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 of the Roman Empire, Valerian was of a noble and traditional senatorial family. Details of his early life are sparse, except for his marriage to Egnatia Mariniana, with whom he had two sons: later emperor Publius Licinius Egnatius Gallienus and Licinius Valerianus. He was Consul for the first time either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Empire
The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post-Republican period of ancient Rome. As a polity, it included large territorial holdings around the Mediterranean Sea in Europe, North Africa, and Western Asia, and was ruled by emperors. From the accession of Caesar Augustus as the first Roman emperor to the military anarchy of the 3rd century, it was a Principate with Italia as the metropole of its provinces and the city of Rome as its sole capital. The Empire was later ruled by multiple emperors who shared control over the Western Roman Empire and the Eastern Roman Empire. The city of Rome remained the nominal capital of both parts until AD 476 when the imperial insignia were sent to Constantinople following the capture of the Western capital of Ravenna by the Germanic barbarians. The adoption of Christianity as the state church of the Roman Empire in AD 380 and the fall of the Western ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muhammad Ibn Jarir Al-Tabari
( ar, أبو جعفر محمد بن جرير بن يزيد الطبري), more commonly known as al-Ṭabarī (), was a Muslim historian and scholar from Amol, Tabaristan. Among the most prominent figures of the Islamic Golden Age, al-Tabari is known for his historical works and his expertise in Qur'anic exegesis (), but he has also been described as "an impressively prolific polymath".Lindsay Jones (ed.), ''Encyclopedia of religion'', volume 13, Macmillan Reference USA, 2005, p. 8943 He wrote works on a diverse range of subjects, including world history, poetry, lexicography, grammar, ethics, mathematics, and medicine. His most influential and best known works are his Quranic commentary, known in Arabic as , and his historical chronicle called '' History of the Prophets and Kings'' (), often referred to as ("al-Tabari's History"). Al-Tabari followed the Shafi'i madhhab for nearly a decade before he developed his own interpretation of Islamic jurisprudence. His understanding ... [...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), or 10,000 m2, 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 (10,000 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 (1,000 m2) 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, i ... [...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 and Sasanian forces under Shahanshah (King of the Kings) Shapur I in 260. The Roman army was defeated and captured in its entirety by the Persian forces; for the first time, a Roman emperor was taken prisoner. As such, the battle is generally viewed as one of the worst disasters in military history. Background and prelude Prior to the battle, Shapur I had penetrated several times deeply into Roman territory, conquering and plundering Antioch in Syria in 253 or 256. After defeating the usurper Aemilianus and assuming the 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. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Iran
The history of Iran is intertwined with the history of a larger region known as Greater Iran, comprising the area from Anatolia in the west to the borders of Ancient India and the Syr Darya in the east, and from the Caucasus and the Eurasian Steppe in the north to the Persian Gulf and the Gulf of Oman in the south. Central to this area is Iran, commonly known until the mid-20th century as Persia in the Western world. Iran is home to one of the world's oldest continuous major civilizations, with historical and urban settlements dating back to 7000 BC.People, "New evidence: modern civilization began in Iran", 10 Aug 2007 , retrieved 1 October 2007 The south-western and western part of the |
World Heritage Site
A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for having cultural, historical, scientific or other form of 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 must be a somehow unique landmark which is geographically and historically identifiable and has special cultural or physical significance. For example, World Heritage Sites might be ancient ruins or historical structures, buildings, cities, deserts, forests, islands, lakes, monuments, mountains, or wilderness areas. A World Heritage Site may signify a remarkable accomplishment of humanity, and serve as evidence of our intellectual history on the planet, or it might be a place of great natural beauty. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 193 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector. Headquartered at the World Heritage Centre in Paris, France, UNESCO has 53 regional field offices and 199 national commissions that facilitate its global mandate. UNESCO was founded in 1945 as the successor to the League of Nations's International Committee on Intellectual Cooperation.English summary). Its constitution establishes the agency's goals, governing structure, and operating framework. UNESCO's founding mission, which was shaped by the Second World War, is to advance peace, sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shushtar Historical Hydraulic System
The Shushtar Historical Hydraulic System ( fa, سازههای آبی شوشتر) is a complex irrigation system of the island city Shushtar from the Sassanid 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 UNESCO's list of World Heritage Sites 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 economy was mainly dependent on agriculture, developed extensive irrigation systems in this region. infrastructure included water mills, dams, tunnels, and canals. Gargar Bridge-Dam was built on the watermills and wa ... [...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 river 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. Etymology There is no single definition as to what constitutes a weir and one English dictionary simply defines a weir as a small dam, likely originating from Middle English ''were'', Old English ''wer'', derivative of root of ''werian,'' meaning "to defend, dam". Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more navigable by boat. In some locations, the terms dam and weir are synonymous, but normally there is a clear distinction made between the structures. Usually, a dam is designed specifically to impound water behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persia
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of , making it the 17th-largest country. Iran has a population of 86 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz. The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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