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Dirhem
The dirham, dirhem or dirhm ( ar, درهم) is a silver unit of currency historically and currently used by several Arab and Arab influenced states. The term has also been used as a related unit of mass. Unit of mass The dirham was a unit of weight used across North Africa, the Middle East, Persia and Ifat; later known as Adal, with varying values. The value of Islamic dirham was 14 qirat, 10 dirham = 7 mithqal, in Islamic law (2.975 gm of silver). In the late Ottoman Empire ( ota, درهم), the standard dirham was 3.207 g; 400 dirhem equal one oka. The Ottoman dirham was based on the Sasanian drachm (in Middle Persian: ''drahm''), which was itself based on the Roman dram/drachm. In Egypt in 1895, it was equivalent to 47.661 troy grains (3.088 g). There is currently a movement within the Islamic world to revive the dirham as a unit of mass for measuring silver, although the exact value is disputed (either 3 or 2.975 grams). History The word "dirham" ultimatel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Dirham
Silver is a chemical element with the symbol Ag (from the Latin ', derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in curre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Hoard From Lublin-Czechów
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oka (measure)
The oka, okka, or oke ( ota, اوقه) was an Ottoman measure of mass, equal to 400 dirhems (Ottoman drams). Its value varied, but it was standardized in the late empire as 1.2829 kilograms. 'Oka' is the most usual spelling today; 'oke' was the usual contemporary English spelling; 'okka' is the modern Turkish spelling, and is usually used in academic work about the Ottoman Empire. In Turkey, the traditional unit is now called the ''eski okka'' 'old oka' or ''kara okka'' 'black okka'; the ''yeni okka'' 'new okka' is the kilogram. In Greece, the oka (, plural ) was standardized at 1.282 kg and remained in use until traditional units were abolished on March 31, 1953—the metric system had been adopted in 1876, but the older units remained in use. In Cyprus, the oka was equal to 1.270058636 kg or 4 onjas, each weighing 100 drams, and it remained in use until 1986, when Cyprus adopted the metric system. OED In Egypt, the monetary oka weighted 1.23536 kg. In Tripolitania, it weigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troy Grain
A grain is a unit of measurement of mass, and in the troy weight, avoirdupois, and apothecaries' systems, equal to exactly milligrams. It is nominally based upon the mass of a single ideal seed of a cereal. From the Bronze Age into the Renaissance, the average masses of wheat and barley grains were part of the legal definitions of units of mass. Expressions such as "thirty-two grains of wheat, taken from the middle of the ear" appear to have been ritualistic formulas, essentially the premodern equivalent of legal boilerplate. Another source states that it was defined such that 252.458 units would balance of distilled water at an ambient air-water pressure and temperature of and respectively. Another book states that Captain Henry Kater, of the British Standards Commission, arrived at this value experimentally. The grain was the legal foundation of traditional English weight systems, and is the only unit that is equal throughout the troy, avoirdupois, and apothecaries' system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moors
The term Moor, derived from the ancient Mauri, is an exonym first used by Christian Europeans to designate the Muslim inhabitants of the Maghreb, the Iberian Peninsula, Sicily and Malta during the Middle Ages. Moors are not a distinct or self-defined people. The 1911 ''Encyclopædia Britannica'' observed that the term had "no real ethnological value." Europeans of the Middle Ages and the early modern period variously applied the name to Arabs and North African Berbers, as well as Muslim Europeans. The term has also been used in Europe in a broader, somewhat derogatory sense to refer to Muslims in general,Menocal, María Rosa (2002). ''Ornament of the World: How Muslims, Jews and Christians Created a Culture of Tolerance in Medieval Spain''. Little, Brown, & Co. , p. 241 especially those of Arab or Berber descent, whether living in Spain or North Africa. During the colonial era, the Portuguese introduced the names " Ceylon Moors" and " Indian Moors" in South Asia and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
