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Histamenon
''Histamenon'' ( grc-gre, όμισμαἱστάμενον '' ómismahistámenon'', "standard oin) was the name given to the gold Byzantine ''solidus'' when the slightly lighter ''tetarteron'' was introduced in the 960s. To distinguish the two, the ''histamenon'' was changed in form from the original ''solidus'', becoming wider and thinner, as well as concave (scyphate) in form. Later usually shortened to ''stamenon'' (Greek: στάμενον), it was discontinued after 1092. In the 12th and 13th centuries, the name ''stamenon'' came to be applied to the concave billon and copper ''trachea'' coins. Establishment Ever since Emperor Constantine I () introduced it in 309, the Byzantine Empire's main coinage had been the high-quality ''solidus'' or ''nomisma'', which had remained standard in weight (4.55 grams) and gold content (24  carats) through the centuries. Emperor Nikephoros II Phokas (), however, introduced a new coin, the '' omismatetarteron'' ("quarter oin) which ...
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Tetarteron
The ''tetarteron'' ( el, όμισματεταρτηρόν, "quarter oin) was a Byzantine term applied to two different coins, one gold circulating from the 960s to 1092 in parallel to the ''histamenon'', and one copper used from 1092 to the second half of the 13th century. Gold coin Ever since Emperor Constantine I (r. 306–337), the Byzantine Empire's main coinage had been the high-quality ''solidus'' or ''nomisma'', which had remained standard in weight and gold content through the centuries. The Emperor Nikephoros II Phokas (r. 963–969), however, introduced a new coin which was a 2 carats (i.e. about 1⁄12, despite its name) lighter than the original ''nomisma'', which now became known as the ''histamenon''... The exact reason for the introduction of the ''tetarteron'' is unclear. According to the historian Zonaras, this was done to increase state revenues: the taxes were to be paid as before in the ''histamenon'', while the state paid its own expenses in the less valuabl ...
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Histamenon Nomisma-Constantine VIII-sb1776
''Histamenon'' ( grc-gre, όμισμαἱστάμενον '' ómismahistámenon'', "standard oin) was the name given to the gold Byzantine ''solidus'' when the slightly lighter ''tetarteron'' was introduced in the 960s. To distinguish the two, the ''histamenon'' was changed in form from the original ''solidus'', becoming wider and thinner, as well as concave (scyphate) in form. Later usually shortened to ''stamenon'' (Greek: στάμενον), it was discontinued after 1092. In the 12th and 13th centuries, the name ''stamenon'' came to be applied to the concave billon and copper ''trachea'' coins. Establishment Ever since Emperor Constantine I () introduced it in 309, the Byzantine Empire's main coinage had been the high-quality ''solidus'' or ''nomisma'', which had remained standard in weight (4.55 grams) and gold content (24  carats) through the centuries. Emperor Nikephoros II Phokas (), however, introduced a new coin, the '' omismatetarteron'' ("quarter oin) which ...
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Histamenon Nomisma-Isaac I-sb1776
''Histamenon'' ( grc-gre, όμισμαἱστάμενον '' ómismahistámenon'', "standard oin) was the name given to the gold Byzantine ''solidus'' when the slightly lighter ''tetarteron'' was introduced in the 960s. To distinguish the two, the ''histamenon'' was changed in form from the original ''solidus'', becoming wider and thinner, as well as concave (scyphate) in form. Later usually shortened to ''stamenon'' (Greek: στάμενον), it was discontinued after 1092. In the 12th and 13th centuries, the name ''stamenon'' came to be applied to the concave billon and copper ''trachea'' coins. Establishment Ever since Emperor Constantine I () introduced it in 309, the Byzantine Empire's main coinage had been the high-quality ''solidus'' or ''nomisma'', which had remained standard in weight (4.55 grams) and gold content (24  carats) through the centuries. Emperor Nikephoros II Phokas (), however, introduced a new coin, the '' omismatetarteron'' ("quarter oin) which ...
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Solidus (coin)
The ''solidus'' (Latin 'solid';  ''solidi'') or nomisma ( grc-gre, νόμισμα, ''nómisma'',  'coin') was a highly pure gold coin issued in the Late Roman Empire and Byzantine Empire. Constantine I, Constantine introduced the coin, and its weight of about 4.5 grams remained relatively constant for seven centuries. In the Byzantine Empire, the solidus or nomisma remained a highly pure gold coin until the 11th century, when several Byzantine Empire, Byzantine list of Byzantine emperors, emperors began to strike the coin with less and less gold. The nomisma was finally abolished by Alexius I in 1092, who replaced it with the hyperpyron, which also came to be known as a "bezant". The Byzantine solidus also inspired the originally slightly less pure Dinar (coin), dinar issued by the Muslim Caliphate. In Western Europe, the solidus was the main gold coin of commerce from late Roman times to Pepin the Short's Carolingian Renaissance#Carolingian currency, currency reform, wh ...
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Histamenon Nomisma-Alexius I-sb1776
''Histamenon'' ( grc-gre, όμισμαἱστάμενον '' ómismahistámenon'', "standard oin) was the name given to the gold Byzantine ''solidus'' when the slightly lighter ''tetarteron'' was introduced in the 960s. To distinguish the two, the ''histamenon'' was changed in form from the original ''solidus'', becoming wider and thinner, as well as concave (scyphate) in form. Later usually shortened to ''stamenon'' (Greek: στάμενον), it was discontinued after 1092. In the 12th and 13th centuries, the name ''stamenon'' came to be applied to the concave billon and copper ''trachea'' coins. Establishment Ever since Emperor Constantine I () introduced it in 309, the Byzantine Empire's main coinage had been the high-quality ''solidus'' or ''nomisma'', which had remained standard in weight (4.55 grams) and gold content (24  carats) through the centuries. Emperor Nikephoros II Phokas (), however, introduced a new coin, the '' omismatetarteron'' ("quarter oin) which ...
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Scyphate
Scyphate is a term frequently used in numismatics to refer to the concave or "cup-shaped" Byzantine coins of the 11th–14th centuries. This usage emerged in the 19th century, when the term ''scyphatus'', attested in south Italian documents of the 11th and 12th centuries, was erroneously interpreted as deriving from the Greek word ''skyphos'' (σκύφος, "cup"). In reality, the term probably derives from the Arabic word ''shafah'', "edge, rim", and refers to the distinctive and conspicuous border of the early '' histamena'' gold coins. Due to this misunderstanding, the term "scyphate" has been widely applied to the concave gold, silver, and copper coins of the late Byzantine Empire and the foreign issues imitating it. These coins are more properly designated as ''trachea'' (singular: ''trachy'', from Greek τραχύ, "rough, uneven").. Gallery File:Scifato_ducale.jpg, "Scyphate" silver ducat of Roger II of Sicily. File:Histamenon nomisma-Isaac I-sb1776.jpg, "Scyphate" ''histame ...
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Michaelaton
The ''michaelaton'' ( el, , "coin of Michael"), in Latin ''michaelatus'', was the colloquial name given to the gold Byzantine coins (''nomismata'') struck by any emperor called Michael. In a more technical sense, it refers to the gold '' histamena'' issued by Emperor Michael IV the Paphlagonian (r. 1034–1041) and, in sources of the late 11th and the 12th centuries, for those of Emperor Michael VII Doukas (r. 1071–1078), whose gold coinage was the last to retain a reasonably high amount of gold (16 carats) before the massive debasement that followed under his successors. It was in widespread use in Italy, especially the south, because it was virtually equal to the popular Sicilian ''tarì A tarì (from Arabic طري ''ṭarī'', lit. "fresh" or "newly minted money") was the Christian designation of a type of gold coin of Islamic origin minted in Sicily, Malta and Southern Italy from about 913 to the 13th century. History In the I ...''. Sources * {{Byzantine coinage G ...
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Alexios I Komnenos
Alexios I Komnenos ( grc-gre, Ἀλέξιος Κομνηνός, 1057 – 15 August 1118; Latinized Alexius I Comnenus) was Byzantine emperor from 1081 to 1118. Although he was not the first emperor of the Komnenian dynasty, it was during his reign that the Komnenos family came to full power and initiated a hereditary succession to the throne. Inheriting a collapsing empire and faced with constant warfare during his reign against both the Seljuq Turks in Asia Minor and the Normans in the western Balkans, Alexios was able to curb the Byzantine decline and begin the military, financial, and territorial recovery known as the Komnenian restoration. His appeals to Western Europe for help against the Turks was the catalyst that sparked the First Crusade. Biography Alexios was the son of John Komnenos and Anna Dalassene,Kazhdan 1991, p. 63 and the nephew of Isaac I Komnenos (emperor 1057–1059). Alexios' father declined the throne on the abdication of Isaac, who was thu ...
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Isaac I Komnenos
Isaac I Komnenos or Comnenus ( grc-gre, Ἰσαάκιος Κομνη­νός, ''Isaakios Komnēnos'';  – 1 June 1060) was Byzantine emperor from 1057 to 1059, the first reigning member of the Komnenian dynasty. The son of the general Manuel Erotikos Komnenos, he was orphaned at an early age, and was raised under the care of Emperor Basil II. He made his name as a successful military commander, serving as commander-in-chief of the eastern armies between and 1054. In 1057 he became the head of a conspiracy of the dissatisfied eastern generals against the newly crowned Michael VI Bringas. Proclaimed emperor by his followers on 8 June 1057, he rallied sufficient military forces to defeat the loyalist army at the Battle of Hades. While Isaac was willing to accept a compromise solution by being appointed Michael's heir, a powerful faction in Constantinople, led by the ambitious Patriarch of Constantinople, Michael Keroularios, pressured Michael to abdicate. After Mi ...
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Constantine IX
Constantine IX Monomachos ( grc-x-medieval, Κωνσταντῖνος Μονομάχος, translit=Kōnstantinos IX Monomachos; 1004 – 11 January 1055), reigned as Byzantine emperor from June 1042 to January 1055. Empress Zoë Porphyrogenita chose him as a husband and co-emperor in 1042, although he had been exiled for conspiring against her previous husband, Emperor Michael IV the Paphlagonian. The couple shared the throne with Zoë's sister Theodora Porphyrogenita. Zoë died in 1050, and Constantine continued his collaboration with Theodora until his own death five years later. Constantine waged wars against groups which included the Kievan Rus', the Pechenegs and, in the East, the rising Seljuq Turks. Despite the varying success of these campaigns, the Byzantine Empire largely retained the borders established after the conquests of Basil II, even expanding eastwards when Constantine annexed the wealthy Armenian kingdom of Ani. Constantine accordingly may be considered the ...
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Hyperpyron
The ''hyperpyron'' ( ''nómisma hypérpyron'') was a Byzantine coin in use during the late Middle Ages, replacing the ''solidus'' as the Byzantine Empire's gold coinage. History The traditional gold currency of the Byzantine Empire had been the ''solidus'' or ''nomisma'', whose gold content had remained steady at 24 carats for seven centuries and was consequently highly prized. From the 1030s, however, the coin was increasingly debased, until in the 1080s, following the military disasters and civil wars of the previous decade, its gold content was reduced to almost zero. Consequently, in 1092, Emperor Alexios I Komnenos ( 1081–1118) undertook a drastic overhaul of the Byzantine coinage system and introduced a new gold coin, the ''hyperpyron'' (meaning "super-refined"). This was of the same standard weight (4.45 grams) as the ''solidus'', but only 20.5 carat purity instead of 24, resulting in a reduced gold content of only 4.1 grams instead of 4.8 grams. The lower purity was due ...
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Michael VII Doukas
Michael VII Doukas or Ducas ( gr, Μιχαήλ Δούκας), nicknamed Parapinakes ( gr, Παραπινάκης, lit. "minus a quarter", with reference to the devaluation of the Byzantine currency under his rule), was the senior Byzantine emperor from 1071 to 1078. He was known as incompetent as an emperor and reliant on court officials, especially of his finance minister Nikephoritzes, who increased taxation and luxury spending while not properly financing their army (which later mutinied). Under his reign, Bari was lost and his empire faced open revolt in the Balkans. Along with the advancing Seljuk Turks in the eastern front, Michael also had to contend with his mercenaries openly going against the empire. Michael stepped down as emperor in 1078 where he later retired to a monastery. Life Michael VII was born 1050 in Constantinople, the eldest son of Constantine X Doukas and Eudokia Makrembolitissa. He was probably associated with the throne around the end of 1059 ...
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