Ancient Greek units of measurement

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Ancient Greek units of measurement varied according to location and epoch. Systems of ancient weights and measures evolved as needs changed; Solon and other lawgivers also reformed them en bloc.[ citation needed ] Some units of measurement were found to be convenient for trade within the Mediterranean region and these units became increasingly common to different city states. The calibration and use of measuring devices became more sophisticated. By about 500 BC, Athens had a central depository of official weights and measures, the Tholos , where merchants were required to test their measuring devices against official standards.[ citation needed ]

Contents

Length

Some Greek measures of length were named after parts of the body, such as the δάκτυλος (daktylos, plural: δάκτυλοιdaktyloi) or finger (having the size of a thumb), and the πούς ( pous , plural: πόδεςpodes) or foot (having the size of a shoe). The values of the units varied according to location and epoch (e.g., in Aegina a pous was approximately 333 mm (13.1 in), whereas in Athens (Attica) it was about 296 mm (11.7 in)), [1] but the relative proportions were generally the same.

Smaller units of length
UnitGreek nameEqual toModern equivalentDescription
daktylosδάκτυλος19.3 mm (0.76 in)finger
kondylosκόνδυλος2 daktyloi38.5 mm (1.52 in)knuckle
palaistē or dōronπαλαιστή, δῶρον4 daktyloi77.1 mm (3.04 in)palm
dichas or hēmipodionδιχάς, ἡμιπόδιον8 daktyloi154.1 mm (6.07 in)half foot
lichasλιχάς10 daktyloi192.6 mm (7.58 in)distance from thumb-tip to tip of outstretched index finger [2]
orthodōronὀρθόδωρον11 daktyloi211.9 mm (8.34 in)straight hand's width
spithamēσπιθαμή12 daktyloi231.2 mm (9.10 in)span of all fingers
pousπούς16 daktyloi308.2 mm (12.13 in) foot
pygmēπυγμή18 daktyloi346.8 mm (13.65 in)forearm
pygōnπυγών20 daktyloi385.3 mm (15.17 in)distance from elbow to fist
pēchysπῆχυς24 daktyloi462.3 mm (18.20 in) cubit
Except where noted, based on Smith (1851). [3] Metric equivalents are approximate.
Smaller units derived from the daktylos
daktyloskondylosdorondichaslichasorthodoronspithamepouspygmepygonpechusroyal pechus
daktylos1121418110111112116118120124127
kondylos21121415211161819110112227
doron42112254111314291516427
dichas8421458112312492513827
lichas1052+121+1411011565859125121027
orthodoron115+122+341+381+1101111211161118112011241127
spithame12631+121+151+11113423351249
pous168421+351+5111+1318945231627
pygme1894+122+141+451+7111+121+1819103423
pygon201052+1221+9111+231+141+191562027
pechus2412632+252+21121+121+131+15189
royal pechus2713+126+343+382+7102+5112+141+11161+121+7201+181
meters0.019260.038530.077060.154110.192640.211910.231170.308230.346760.385290.462340.52014
Larger units of length
UnitGreek nameEqual toModern equivalentDescription
pousπούς0.308 m (1.01 ft)foot
haploun bēma [4] ἁπλοῦν βῆμα2+12 podes0.77 m (2.5 ft)step
bēma, [3] diploun bēma [4] βῆμα, διπλοῦν βῆμα5 podes1.54 m (5.1 ft) pace
orgyiaὄργυια6 podes1.85 m (6.1 ft) fathom
kalamos, akaina or dekapousκάλαμος, ἄκαινα, δεκάπους10 podes3.08 m (10.1 ft)10 feet
hammaἅμμα60 podes18.5 m (20.2 yd)knot, link of a chain
plethron πλέθρον100 podes30.8 m (33.7 yd)100 feet
stadion στάδιον600 podes184.9 m (202.2 yd)an eighth of a Roman mile
diaulos δίαυλος2 stadia369.9 m (404.5 yd)double pipe
hippikonἱππικόν4 stadia739.7 m (808.9 yd)length of a hippodrome [5]
milionμίλιον8 stadia1.479 km (1,617 yd) Roman mile
dolichos [4] δόλιχος12 stadia2.219 km (1.379 mi)long race
parasanges, or league [6] παρασάγγης30 stadia5.548 km (3.447 mi)adopted from Persia [4]
schoinos σχοινός40 stadia7.397 km (4.596 mi)adopted from Egypt [4]
stage [6] 160 stadia29.8 km (18.5 mi)
Except where noted, based on Smith (1851). [3] Metric equivalents are approximate.
Larger units derived from the pous
pousbema haplunbema diplunorguiaakainahammaplethronstadion
pous125151611016011001600
bema haplun2+12112512141241401240
bema diplun52156121121201120
orguia62+251+151351103501100
akaina10421+23116110160
hamma602412106135110
plethron100402016+23101+23116
stadion600240120100601061
meters0.308230.770571.541151.84943.082318.493830.823184.94

Area

The ordinary units used for land measurement were:

Units of surface measurement
UnitGreek nameEqual toModern equivalentDescription
pousπούς0.095 m2 (1.02 sq ft)square foot
hexapodēsἑξαπόδης36 podes3.42 m2 (36.8 sq ft)square six-foot
akainaἄκαινα100 podes9.50 m2 (102.3 sq ft)rod
hēmiektosἡμίεκτος833+13 podes79.2 m2 (853 sq ft)half a sixth
hektosἕκτος1,666+23 podes158.3 m2 (1,704 sq ft)a sixth of a plethron
arouraἄρουρα2,500 podes237.5 m2 (2,556 sq ft)field
plethronπλέθρον10,000 podes950 m2 (10,200 sq ft)
Except where noted, based on Smith (1851). [3] Metric equivalents are approximate.

Volume

Hoplitodromia Louvre CA214.jpg
Neck amphora depicting an athlete
running the hoplitodromos by the Berlin
Painter, c.480 BC, Louvre.

Greeks measured volume according to either solids or liquids, suited respectively to measuring grain and wine. A common unit in both measures throughout historic Greece was the cotyle or cotyla whose absolute value varied from one place to another between 210 ml and 330 ml. [1] The basic unit for both solid and liquid measures was the κύαθος (kyathos, plural: kyathoi). [4]

The Attic liquid measures were:

Attic measures of liquid capacity
UnitGreek nameEqual toModern equivalentDescription
kochliarionκοχλιάριον4.5 mL (0.15 US fl oz; 0.16 imp fl oz)spoon
chēmēχήμη2 kochliaria9.1 mL (0.31 US fl oz; 0.32 imp fl oz)a measure [7]
mystronμύστρον2+12 kochliaria11.4 mL (0.39 US fl oz; 0.40 imp fl oz)Roman ligula
konchēκόγχη5 kochliaria22.7 mL (0.77 US fl oz; 0.80 imp fl oz)shell-full
kyathosκύαθος10 kochliaria45.5 mL (1.54 US fl oz; 1.60 imp fl oz)Roman cyathus
oxybaphonὀξυβαφον1+12 kyathoi68.2 mL (2.31 US fl oz; 2.40 imp fl oz)Roman acetabulum
tetarton, [3] hēmikotylē [4] τέταρτον, ἡμικοτύλη3 kyathoi136.4 mL (4.61 US fl oz; 4.80 imp fl oz)Roman quartarius
kotylē, tryblion or hēminaκοτύλη, τρύβλιον, ἡμίνα6 kyathoi272.8 mL (9.22 US fl oz; 9.60 imp fl oz)Roman cotyla or hemina
xestēsξέστης12 kyathoi545.5 mL (1.153 US pt; 0.960 imp pt)Roman sextarius
chousχοῦς72 kyathoi3.27 L (6.9 US pt; 5.75 imp pt)Roman congius
keramionκεράμιον8 choes26.2 L (6.9 US gal; 5.8 imp gal)Roman amphora quadrantal
metrētēs μετρητής12 choes39.3 L (10.4 US gal; 8.6 imp gal)amphora
Except where noted, based on Smith (1851). [3] Metric equivalents are approximate.
Illustration of the Third Horseman of the Apocalypse holding a set of scales; in the Book of Revelation he proclaims "A choinix of wheat for a denarius, and three choinikes of barley for a denarius;" indicating high food prices during a famine. BritLibAddMS35166ApocalypseUnkFolio3SealBlackHorse.jpg
Illustration of the Third Horseman of the Apocalypse holding a set of scales; in the Book of Revelation he proclaims "A choinix of wheat for a denarius, and three choinikes of barley for a denarius;" indicating high food prices during a famine.

and the Attic dry measures of capacity were:

Attic measures of dry capacity
UnitGreek nameEqual toModern equivalentDescription
kochliarionκοχλιάριον4.5 mL (0.15 US fl oz; 0.16 imp fl oz)
kyathosκύαθος10 kochliaria45.5 mL (1.54 US fl oz; 1.60 imp fl oz)Roman cyathus
oxybaphonὀξυβαφον1+12 kyathoi68.2 mL (2.31 US fl oz; 2.40 imp fl oz)Roman acetabulum
kotylē or hēminaκοτύλη, ἡμίνα6 kyathoi272.8 mL (9.22 US fl oz; 9.60 imp fl oz)Roman cotyla or hemina
xestēsξέστης12 kyathoi545.5 mL (1.153 US pt; 0.960 imp pt)Roman sextarius
choinixχοῖνιξ24 kyathoi1.09 L (2.3 US pt; 1.92 imp pt)
hēmiektonἡμίεκτον4 choinikes4.36 L (1.15 US gal; 0.96 imp gal)Roman semimodius
hekteusἑκτεύς8 choinikes8.73 L (2.31 US gal; 1.92 imp gal)Roman modius
medimnos μέδιμνος48 choinikes52.4 L (13.8 US gal; 11.5 imp gal)
Except where noted, based on Smith (1851). [3] Metric equivalents are approximate.

Currency

The basic unit of Athenian currency was the obol, weighing approximately 0.72 grams of silver: [9] [10]

An obol, Attica, Athens, weighing 0.69g After 449 BC SNGCop 053.jpg
An obol, Attica, Athens, weighing 0.69g After 449 BC
UnitGreek nameEquivalentWeight
obol or obolus ὀβολός16 drachma, 4 tetartemorions0.72 g (0.023 ozt)
drachma δραχμή6 obols4.3 g (0.14 ozt)
minaμνᾶ100 drachmae
talent τάλαντον60 minae

Mass

Mass is often associated with currency since units of currency involve prescribed amounts of a given metal. Thus for example the English pound has been both a unit of mass and a currency. Greek masses similarly bear a nominal resemblance to Greek currency yet the origin of the Greek standards of weights is often disputed. [11] There were two dominant standards of weight in the eastern Mediterranean: a standard that originated in Euboea and that was subsequently introduced to Attica by Solon, and also a standard that originated in Aegina. The Attic/Euboean standard was supposedly based on the barley corn, of which there were supposedly twelve to one obol. However, weights that have been retrieved by historians and archeologists show considerable variations from theoretical standards. A table of standards derived from theory is as follows: [11]

UnitGreek nameEquivalentMetric EquivalentAeginetic standard
obol or obolus ὀβολός [12] 0.72 g (0.025 oz)1.05 g (0.037 oz)
drachma δραχμή [13] 6 obols4.31 g (0.152 oz)6.3 g (0.22 oz)
minaμνᾶ [14] 100 drachmae431 g (15.2 oz)630 g (22 oz)
talentτάλαντον [15] 60 minae25.86 kg (57.0 lb)37.8 kg (83 lb)

Time

Athenians measured the day by sundials and unit fractions. Periods during night or day were measured by a water clock (clepsydra) that dripped at a steady rate and other methods. Whereas the day in the Gregorian calendar commences after midnight, the Greek day began after sunset. Athenians named each year after the Archon Eponymous for that year, and in Hellenistic times years were reckoned in quadrennial epochs according to the Olympiad.

In archaic and early classical Greece, months followed the cycle of the Moon which made them not fit exactly into the length of the solar year. Thus, if not corrected, the same month would migrate slowly into different seasons of the year. The Athenian year was divided into 12 months, with one additional month (Poseidon deuterons, thirty days) being inserted between the sixth and seventh months every second year. Even with this intercalary month, the Athenian or Attic calendar was still fairly inaccurate and days had occasionally to be added by the Archon Basileus. The start of the year was at the summer solstice (previously it had been at the winter solstice) and months were named after Athenian religious festivals, 27 mentioned in the Hibah Papyrus, circa 275 BC.

This section of a frieze from the Elgin Marbles shows a cavalry procession that was part of the quadrennial Greater Panathenaic festival, always held in the month Hekatombion. Elgin marbles frieze.jpg
This section of a frieze from the Elgin Marbles shows a cavalry procession that was part of the quadrennial Greater Panathenaic festival, always held in the month Hekatombion.
MonthGreek nameGregorian equivalent
HecatombaeonἙκατομβαιώνJune–July
MetageitnionΜεταγειτνιώνJuly–August
BoedromionΒοηδρομιώνAugust–September
PyanepsionΠυανεψιώνSeptember–October
MaemacterionΜαιμακτηριώνOctober–November
PoseideonΠοσειδεώνNovember–December
GamelionΓαμηλιώνDecember–January
AnthesterionἈνθεστηριώνJanuary–February
ElaphebolionἘλαφηβολιώνFebruary–March
MunychionΜουνυχιώνMarch–April
ThargelionΘαργηλιώνApril–May
ScirophorionΣκιροφοριώνMay–June

See also

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References

  1. 1 2 "Measures". The Oxford Classical Dictionary. 2003.
  2. "What is the unit called a lichas?". www.sizes.com.
  3. 1 2 3 4 5 6 7 Smith, Sir William; Charles Anthon (1851) A new classical dictionary of Greek and Roman biography, mythology, and geography partly based upon the Dictionary of Greek and Roman biography and mythology New York: Harper & Bros. Tables, pp. 1024–30
  4. 1 2 3 4 5 6 7 EIM:Metrology:History. Hellenic Institute of Metrology (EIM). Archived 13 April 2009.
  5. Petermandl, Werner (November 19, 2020). "On the length of the Greek hippodrome". In Moretti, Jean-Charles; Valavanis, Panos (eds.). Les hippodromes et les concours hippiques dans la grèce antique. Suppléments du BCH. École française d’Athènes. pp. 133–144. ISBN   9782869584662 via OpenEdition Books.
  6. 1 2 Xenophon, Anabasis. ca 400 B.C.
  7. Ward, Elster F. (February 2, 1899). "Outlines of Sociology" via Google Books.
  8. Mounce, Robert H. (2006). The Book of Revelation. Grand Rapids, Mich. [u.a.]: Eerdmans. p. 140. ISBN   9780802825377 . Retrieved 2015-04-10.
  9. British Museum Catalogue 11 - Attica Megaris Aegina
  10. "History 310: Greek Coinage and Measures". Archived from the original on May 4, 2015. Retrieved July 31, 2005.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  11. 1 2 "Weights". The Oxford Classical Dictionary. 2003.
  12. ὀβολός . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project
  13. δραχμή . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project
  14. μνᾶ . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project
  15. τάλαντον . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project