Sestertius
Encyclopedia
The sestertius, or sesterce, was an ancient Roman
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 coin
Coin
A coin is a piece of hard material that is standardized in weight, is produced in large quantities in order to facilitate trade, and primarily can be used as a legal tender token for commerce in the designated country, region, or territory....

. During the Roman Republic
Roman Republic
The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

 it was a small, silver
Silver
Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

 coin issued only on rare occasions. During the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 it was a large brass
Brass
Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.In comparison, bronze is principally an alloy of copper and tin...

 coin.

The name sestertius (originally semis-tertius) means "2 ½", the coin's original value in asses, and is a combination of semis "half" and tertius "third", that is, "the third half" (0 ½ being the first half and 1 ½ the second half) or "half the third" (two units plus half the third unit, or halfway between the second unit and the third). Parallel constructions exist in Danish
Danish language
Danish is a North Germanic language spoken by around six million people, principally in the country of Denmark. It is also spoken by 50,000 Germans of Danish ethnicity in the northern parts of Schleswig-Holstein, Germany, where it holds the status of minority language...

 with halvanden (1 ½), halvtredje (2 ½) and halvfjerde (3 ½). The form sesterce, derived from French
French language
French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

, was once used in preference to the Latin form, but is now considered old-fashioned.

It is abbreviated as HS (originally IIS).

History

The sestertius was introduced ca. 211 BC
211 BC
Year 211 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Maximus and Maximus...

 as a small silver
Silver
Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

 coin valued at one-quarter of a denarius
Denarius
In the Roman currency system, the denarius was a small silver coin first minted in 211 BC. It was the most common coin produced for circulation but was slowly debased until its replacement by the antoninianus...

 (and thus one hundredth of an aureus
Aureus
The aureus was a gold coin of ancient Rome valued at 25 silver denarii. The aureus was regularly issued from the 1st century BC to the beginning of the 4th century, when it was replaced by the solidus...

). A silver denarius was supposed to weigh about 4.5 grams, valued at ten grams, with the silver sestertius valued at two and one-half grams. In practice, the coins were usually underweight.

When the denarius was retariffed to sixteen asses (due to the gradual reduction in the size of bronze denominations), the sestertius was accordingly revalued to four asses, still equal to one quarter of a denarius. It was produced sporadically, far less often than the denarius, through 44 BC
44 BC
Year 44 BC was either a common year starting on Sunday or Monday or a leap year starting on Friday or Saturday of the Julian calendar and a common year starting on Sunday of the Proleptic Julian calendar...

.

In or about 23 BC, with the coinage reform of Augustus
Augustus
Augustus ;23 September 63 BC – 19 August AD 14) is considered the first emperor of the Roman Empire, which he ruled alone from 27 BC until his death in 14 AD.The dates of his rule are contemporary dates; Augustus lived under two calendars, the Roman Republican until 45 BC, and the Julian...

, the denomination of sestertius was introduced as the large brass denomination. The sestertius was produced as the largest brass
Brass
Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.In comparison, bronze is principally an alloy of copper and tin...

 denomination until the late 3rd century AD. Most were struck in the mint of Rome
Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 but from AD 64 during the reign of Nero
Nero
Nero , was Roman Emperor from 54 to 68, and the last in the Julio-Claudian dynasty. Nero was adopted by his great-uncle Claudius to become his heir and successor, and succeeded to the throne in 54 following Claudius' death....

 (AD 54–68) and Vespasian
Vespasian
Vespasian , was Roman Emperor from 69 AD to 79 AD. Vespasian was the founder of the Flavian dynasty, which ruled the Empire for a quarter century. Vespasian was descended from a family of equestrians, who rose into the senatorial rank under the Emperors of the Julio-Claudian dynasty...

 (AD 69–79), the mint of Lyon
Lyon
Lyon , is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at from Paris, from Marseille, from Geneva, from Turin, and from Barcelona. The residents of the city are called Lyonnais....

 (Lugdunum), supplemented production. Lyon sestertii can be recognised by a small globe, or legend stop), beneath the bust.

The brass sestertius typically weighs in the region of 25 to 28 grammes, is around 32–34 mm in diameter and about 4mm thick. The distinction between bronze
Bronze
Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. It is hard and brittle, and it was particularly significant in antiquity, so much so that the Bronze Age was named after the metal...

 and brass was important to the Romans. Their name for brass
Brass
Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.In comparison, bronze is principally an alloy of copper and tin...

 was orichalcum
Orichalcum
Orichalcum is a metal mentioned in several ancient writings, most notably the story of Atlantis as recounted in the Critias dialogue, recorded by Plato. According to Critias, orichalcum was considered second only to gold in value, and was found and mined in many parts of Atlantis in ancient times....

, a word sometimes also spelled aurichalcum (echoing the word for a gold coin, aureus), meaning 'gold-copper', because of its shiny, gold-like appearance when the coins were newly-struck (see, for example Pliny the Elder
Pliny the Elder
Gaius Plinius Secundus , better known as Pliny the Elder, was a Roman author, naturalist, and natural philosopher, as well as naval and army commander of the early Roman Empire, and personal friend of the emperor Vespasian...

 in his Natural History Book 34.4).

Orichalcum
Orichalcum
Orichalcum is a metal mentioned in several ancient writings, most notably the story of Atlantis as recounted in the Critias dialogue, recorded by Plato. According to Critias, orichalcum was considered second only to gold in value, and was found and mined in many parts of Atlantis in ancient times....

 was considered, by weight, to be worth about double that of bronze. This is why the half-sestertius, the dupondius
Dupondius
The dupondius was a brass coin used during the Roman Empire and Roman Republic valued at 2 asses ....

, was around the same size and weight as the bronze as, but was worth two asses.

Sestertii continued to be struck until the late 3rd century, although there was a marked deterioration in the quality of the metal used and the striking even though portraiture remained strong. Later emperors increasingly relied on melting down older sestertii, a process which led to the zinc component being gradually lost as it burned off in the high temperatures needed to melt copper (Zinc
Zinc
Zinc , or spelter , is a metallic chemical element; it has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is +2...

 melts at 419 °C, Copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 at 1085 °C). The shortfall was made up with bronze and even lead. Later sestertii tend to be darker in appearance as a result and are made from more crudely prepared blanks (see the Hostilian
Hostilian
Hostilian was Roman emperor in 251. Hostilian was born in Sirmium in Illyricum sometime after 230, as the son of the future emperor Decius by his wife Herennia Cupressenia Etruscilla...

 coin on this page).

The gradual impact of inflation
Inflation
In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time.When the general price level rises, each unit of currency buys fewer goods and services. Consequently, inflation also reflects an erosion in the purchasing power of money – a...

 caused by debasement
Debasement
Debasement is the practice of lowering the value of currency. It is particularly used in connection with commodity money such as gold or silver coins...

 of the silver currency meant that the purchasing power of the sestertius and smaller denominations like the dupondius and as was steadily reduced. In the 1st century AD, everyday small change was dominated by the dupondius and as, but in the 2nd century, as inflation bit, the sestertius became the dominant small change. In the 3rd century silver coinage contained less and less silver, and more and more copper or bronze. By the 260s and 270s the main unit was the double-denarius, the antoninianus
Antoninianus
The antoninianus was a coin used during the Roman Empire thought to have been valued at 2 denarii. It was initially silver, but was slowly debased to bronze. The coin was introduced by Caracalla in early 215 and was a silver coin similar to the denarius except that it was slightly larger and...

, but by then these small coins were almost all bronze. Although these coins were theoretically worth eight sestertii, the average sestertius was worth far more in plain terms of the metal they contained.

Some of the last sestertii were struck by Aurelian
Aurelian
Aurelian , was Roman Emperor from 270 to 275. During his reign, he defeated the Alamanni after a devastating war. He also defeated the Goths, Vandals, Juthungi, Sarmatians, and Carpi. Aurelian restored the Empire's eastern provinces after his conquest of the Palmyrene Empire in 273. The following...

 (270–275 AD). During the end of its issue, when sestertii were reduced in size and quality, the double sestertius
Double sestertius
The double sestertius was a large Roman coin made of orichalcum first issued by Trajan Decius in AD 249-251, as a response to the inflationary pressures of the time which had devalued the buying power of the conventional sestertius...

 was issued first by Trajan Decius (249–251 AD) and later in large quantity by the ruler of a breakaway regime in the West called Postumus
Postumus
Marcus Cassianius Latinius Postumus was a Roman emperor of Batavian origin. He usurped power from Gallienus in 260 and formed the so-called Gallic Empire...

 (259–268 AD), who often used worn old sestertii to overstrike
Overstrike (numismatics)
In Numismatics overstrike refers to the image on a coin which has been coined more than once. Overstriking is done deliberately when the first strike is unsatisfactory, or accidentally if the blank slips out of place or if the dies judder, resulting in a slight doubling of the design.Sometimes old...

 his image and legends on. The double sestertius was distinguished from the sestertius by the radiate crown worn by the emperor, a device used to distinguish the dupondius from the as and the antoninianus from the denarius.

Eventually, the inevitable happened. Many sestertii were withdrawn by the state and by forgers, to melt down to make the debased antoninianus, which made inflation worse. In the coinage reforms of the 4th century AD, the sestertius played no part and passed into history.

As a unit of account

The sestertius was also used as a standard unit of account, represented on inscriptions with the monogram HS. Large values were recorded in terms of sestertium milia, thousands of sestertii, with the milia often omitted and implied. The hyper-wealthy general and politician of the late Roman Republic, Crassus (who fought in the war to defeat Spartacus
Spartacus
Spartacus was a famous leader of the slaves in the Third Servile War, a major slave uprising against the Roman Republic. Little is known about Spartacus beyond the events of the war, and surviving historical accounts are sometimes contradictory and may not always be reliable...

), was said by Pliny the Elder to have had 'estates worth 200 million sesterces'.

A loaf of bread cost roughly half a sestertius, and a sextarius (~0.5 liter) of wine
Wine
Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...

 anywhere from less than half to more than 1 sestertius. One modius (6.67 kg) of wheat
Wheat
Wheat is a cereal grain, originally from the Levant region of the Near East, but now cultivated worldwide. In 2007 world production of wheat was 607 million tons, making it the third most-produced cereal after maize and rice...

 in 79 AD Pompeii
Pompeii
The city of Pompeii is a partially buried Roman town-city near modern Naples in the Italian region of Campania, in the territory of the comune of Pompei. Along with Herculaneum, Pompeii was destroyed and completely buried during a long catastrophic eruption of the volcano Mount Vesuvius spanning...

 cost 7 sestertii, of rye
Rye
Rye is a grass grown extensively as a grain and as a forage crop. It is a member of the wheat tribe and is closely related to barley and wheat. Rye grain is used for flour, rye bread, rye beer, some whiskeys, some vodkas, and animal fodder...

 3 sestertii, a bucket 2 sestertii, a tunic 15 sestertii, a donkey 500 sestertii.

Records from Pompeii
Pompeii
The city of Pompeii is a partially buried Roman town-city near modern Naples in the Italian region of Campania, in the territory of the comune of Pompei. Along with Herculaneum, Pompeii was destroyed and completely buried during a long catastrophic eruption of the volcano Mount Vesuvius spanning...

 show a slave being sold at auction for 6,252 sestertii. A writing tablet from Londinium
Londinium
The city of London was established by the Romans around AD 43. It served as a major imperial commercial centre until its abandonment during the 5th century.-Origins and language:...

 (Roman London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

), dated to c. 75–125 AD, records the sale of a Gallic
Gauls
The Gauls were a Celtic people living in Gaul, the region roughly corresponding to what is now France, Belgium, Switzerland and Northern Italy, from the Iron Age through the Roman period. They mostly spoke the Continental Celtic language called Gaulish....

 slave girl called Fortunata for 600 denarii, equal to 2,400 sestertii, to a man called Vegetus. It is difficult to make any comparisons with modern coinage or prices, but for most of the 1st century AD the ordinary legionary
Legionary
The Roman legionary was a professional soldier of the Roman army after the Marian reforms of 107 BC. Legionaries had to be Roman citizens under the age of 45. They enlisted in a legion for twenty-five years of service, a change from the early practice of enlisting only for a campaign...

 was paid 900 sestertii per annum, rising to 1,200 under Domitian
Domitian
Domitian was Roman Emperor from 81 to 96. Domitian was the third and last emperor of the Flavian dynasty.Domitian's youth and early career were largely spent in the shadow of his brother Titus, who gained military renown during the First Jewish-Roman War...

 (81-96 AD), the equivalent of 3.3 sestertii per day. Half of this was deducted for living costs, leaving the soldier (if he was lucky enough actually to get paid) with about 1.65 sestertii per day.

If we assume a legionary's wages were based on an individual who needed to support a family of 5 with a working wife, a typical yearly income for the family could be around 1,000 sestertii. This would correspond to between $1500 and $1750 per year for a family of five in Congo
Democratic Republic of the Congo
The Democratic Republic of the Congo is a state located in Central Africa. It is the second largest country in Africa by area and the eleventh largest in the world...

, although other factors such as income inequality and the citizen status of legionaries mean this figure is not perfectly accurate. It could be assumed though that at one point 1 sestertius was the equivalent of $1.50, 1.11 euros or £1. According to this exchange rate a Congo citizen living on $1500 a year could afford 400 pounds of bread a year in ancient Rome, which is enough to keep someone healthy enough to work, a standard of living common to Roman plebeians and slaves of the time.

Numismatic value

Sestertii are highly valued by numismatists, since their large size gave caelatores (engravers) a large area in which to produce detailed portraits and reverse types. The most celebrated are those produced for Nero
Nero
Nero , was Roman Emperor from 54 to 68, and the last in the Julio-Claudian dynasty. Nero was adopted by his great-uncle Claudius to become his heir and successor, and succeeded to the throne in 54 following Claudius' death....

 (54-68 AD) between the years 64 and 68 AD, created by some of the most accomplished coin engravers in history. The brutally realistic portraits of this emperor, and the elegant reverse designs, greatly impressed and influenced the artists of the Renaissance
Renaissance
The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the Late Middle Ages and later spreading to the rest of Europe. The term is also used more loosely to refer to the historical era, but since the changes of the Renaissance were not...

. The series issued by Hadrian
Hadrian
Hadrian , was Roman Emperor from 117 to 138. He is best known for building Hadrian's Wall, which marked the northern limit of Roman Britain. In Rome, he re-built the Pantheon and constructed the Temple of Venus and Roma. In addition to being emperor, Hadrian was a humanist and was philhellene in...

 (117-138 AD), recording his travels around the Roman Empire, brilliantly depicts the Empire at its height, and included the first representation on a coin of the figure of Britannia
Britannia
Britannia is an ancient term for Great Britain, and also a female personification of the island. The name is Latin, and derives from the Greek form Prettanike or Brettaniai, which originally designated a collection of islands with individual names, including Albion or Great Britain. However, by the...

; it was revived by Charles II
Charles II of England
Charles II was monarch of the three kingdoms of England, Scotland, and Ireland.Charles II's father, King Charles I, was executed at Whitehall on 30 January 1649, at the climax of the English Civil War...

, and was a feature of United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 coinage until the 2008 redesign.

Very high quality examples can sell for over a million dollars
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

at auction , but the coins were produced in such colossal abundance that millions survive. Worn, but recognisable, examples of common types can be found for as little £10 or $20.

External links

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