A coin is a small object, usually round and flat, used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by a government. Coins often have images, numerals, or text on them. The faces of coins or medals are sometimes called the obverse and the reverse, referring to the front and back sides, respectively. The obverse of a coin is commonly called heads, because it often depicts the head of a prominent person, and the reverse is known as tails.
The denarius was the standard Roman silver coin from its introduction in the Second Punic War c. 211 BC to the reign of Gordian III, when it was gradually replaced by the antoninianus. It continued to be minted in very small quantities, likely for ceremonial purposes, until and through the Tetrarchy (293–313).
The as, occasionally assarius, was a bronze, and later copper, coin used during the Roman Republic and Roman Empire.
Roman currency for most of Roman history consisted of gold, silver, bronze, orichalcum and copper coinage. From its introduction during the Republic, in the third century BC, through Imperial times, Roman currency saw many changes in form, denomination, and composition. A feature was the inflationary debasement and replacement of coins over the centuries. Notable examples of this followed the reforms of Diocletian. This trend continued with Byzantine currency.
The history of ancient Greek coinage can be divided into four periods: the Archaic, the Classical, the Hellenistic and the Roman. The Archaic period extends from the introduction of coinage to the Greek world during the 7th century BC until the Persian Wars in about 480 BC. The Classical period then began, and lasted until the conquests of Alexander the Great in about 330 BC, which began the Hellenistic period, extending until the Roman absorption of the Greek world in the 1st century BC. The Greek cities continued to produce their own coins for several more centuries under Roman rule. The coins produced during this period are called Roman provincial coins or Greek Imperial Coins.
The quadrans or teruncius was a low-value Roman bronze coin worth one quarter of an as. The quadrans was issued from the beginning of cast bronze coins during the Roman Republic, showing three pellets representing three unciae as a mark of value. The obverse type, after some early variations, featured the bust of Hercules, while the reverse featured the prow of a galley. Coins with the same value were issued from other cities in Central Italy, using a cast process.
Roman Republican currency is the coinage struck by the various magistrates of the Roman Republic, to be used as legal tender. In modern times, the abbreviation RRC, "Roman Republican Coinage" originally the name of a reference work on the topic by Michael H. Crawford, has come to be used as an identifying tag for coins assigned a number in that work, such as RRC 367.
Aes rude was a nugget of bronze used as a sort of proto-currency in ancient Italy prior to the use of minted coins made from precious metals.
The Coinage of India began anywhere between early 1st millennium BCE to the 6th century BCE, and consisted mainly of copper and silver coins in its initial stage. The coins of this period were Karshapanas or Pana. A variety of earliest Indian coins, however, unlike those circulated in West Asia, were stamped bars of metal, suggesting that the innovation of stamped currency was added to a pre-existing form of token currency which had already been present in the Janapadas and Mahajanapada kingdoms of the Early historic India. The kingdoms that minted their own coins included Gandhara, Kuntala, Kuru, Magadha, Panchala, Shakya, Surasena, Surashtra and Vidarbha etc.
The stater was an ancient coin used in various regions of Greece. The term is also used for similar coins, imitating Greek staters, minted elsewhere in ancient Europe.
Aes grave is a term in numismatics indicating bronze cast coins used in central Italy during the 3rd century BC, whose value was generally indicated by signs: I for the as, S for semis and pellets for unciae. Standard weights for the as were 272, 327, or 341 grams, depending upon the issuing authority.
Etruscan cities were a group of ancient settlements that shared a common Etruscan language and culture, even though they were independent city-states. They flourished over a large part of the northern half of Italy starting from the Iron Age, and in some cases reached a substantial level of wealth and power. They were eventually assimilated first by Italics in the south, then by Celts in the north and finally in Etruria itself by the growing Roman Republic.
The libral standard compares the weight of coins to the bronze as, which originally weighed one Roman pound, but decreased over time to 1/2 pound. It is often used in discussions of ancient cast coinage of central Italy, especially Etruscan coins and Roman Republican coinage. The adjective libral is related to libra, the Ancient Roman unit of weight, and is not related to the word liberal.
Italy has a long history of different coinage types, which spans thousands of years. Italy has been influential at a coinage point of view: the medieval Florentine florin, one of the most used coinage types in European history and one of the most important coins in Western history, was struck in Florence in the 13th century, while the Venetian sequin, minted from 1284 to 1797, was the most prestigious gold coin in circulation in the commercial centers of the Mediterranean Sea.
The Croeseid, anciently Kroiseioi stateres, was a type of coin, either in gold or silver, which was minted in Sardis by the king of Lydia Croesus from around 550 BC. Croesus is credited with issuing the first true gold coins with a standardised purity for general circulation, and the world's first bimetallic monetary system.
The coinage of Suessa concerns coins minted in Suessa, a city in ancient Campania inhabited by the Aurunci, an ancient Italic population. The city minted coins in the period between 268 B.C. and the Second Punic War.
The coinage of Capua concerns coins minted in ancient Capua, a city in ancient Campania, corresponding to present-day Santa Maria Capua Vetere. The city was located on the Appian Way and was the most important in the area, probably the largest center in the Italian peninsula after Rome.
Coinage of Aesernia concerns coins minted in Aesernia, a city in Samnium, where a Roman colony was created in 263 BC. The coins were minted around 263 to 240 B.C., after the colony was founded.
Coinage of Luceria concerns the coins issued in Luceria, a city in Daunia, after the Romans established a colony.
Coinage of Populonia consists of the coins minted by the city of Populonia and issued from the mid-5th century B.C. until the mid-3rd century B.C., when the city lost its autonomy.
