Schoenus ( la, schœnus; grc-gre, σχοίνος, ''schoinos'', " rush rope"; egy, i͗trw, "river-measure") was an ancient

Egyptian Egyptian describes something of, from, or related to Egypt. Egyptian or Egyptians may refer to: Nations and ethnic groups * Egyptians, a national group in North Africa ** Egyptian culture, a complex and stable culture with thousands of years of ...

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

and Roman unit of length and

area Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or ''plane area'' refers to the area of a shape or planar lamina, while '' surface area'' refers to the area of an ope ...

based on the

knotted cord A knotted cord was a primitive surveyor's tool for measuring distances. It is a length of cord with knots at regular intervals. They were eventually replaced by surveyor's chains, which being made of metal were less prone to stretching and thus w ...

s first used in

surveying.

Length

The

Greeks The Greeks or Hellenes (; el, Έλληνες, ''Éllines'' ) are an ethnic group and nation indigenous to the Eastern Mediterranean and the Black Sea regions, namely Greece, Cyprus, Albania, Italy, Turkey, Egypt, and, to a lesser extent, oth ...

, who adopted it from the Egyptians, generally considered the schoinos equal to 40 stades, but neither the schoinos nor the stadion had an absolute value, and there were several regional variants of each. Strabo noted that it also varied with terrain, and that when he "ascended the hills, the measures of these schoeni were not everywhere uniform, so that the same number sometimes designated a greater, sometimes a less actual extent of road, a variation which dates from the earliest time and exists in our days."

Herodotus Herodotus ( ; grc, , }; BC) was an ancient Greek historian and geographer A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society ...

2.6
an

says, that schoenus is 60 stadia or about . This agrees with the distance implied by the

Triacontaschoenus The Triakontaschoinos ( el, Τριακοντάσχοινος, "Land of the Thirty '' Schoinoi''"), Latinized as Triacontaschoenus, was a geographical and administrative term used in the Greco-Roman world for the part of Lower Nubia between the F ...

stretching south of the

First Cataract The Cataracts of the Nile are shallow lengths (or whitewater rapids) of the Nile river, between Khartoum and Aswan, where the surface of the water is broken by many small boulders and stones jutting out of the river bed, as well as many rocky ...

in Roman-era

Nubia Nubia () (Nobiin: Nobīn, ) is a region along the Nile river encompassing the area between the first cataract of the Nile (just south of Aswan in southern Egypt) and the confluence of the Blue and White Niles (in Khartoum in central Sudan), or ...

Pliny the Elder Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic ' ...

br>5.11
that is 30 stadia. Strabo

according to the place, between 30 and 120 stadia.

Isidore of Charax Isidore of Charax (; grc, Ἰσίδωρος ὁ Χαρακηνός, ''Isídōros o Charakēnós''; la, Isidorus Characenus) was a Greco-Roman geographer of the 1st century BC and 1st century AD, a citizen of the Parthian Empire, about whom nothi ...

's schoenus—used in his '' Parthian Stations''—has been given values between 4.7 and 5.5 kilometers, but the precise value remains controversial given the known errors in some of his distances. The Byzantine schoinion or "little schoenus" (, ''skhoinion'') was or 33⅓ stades.

Area

The Romans also used the schoenus as a unit of area, equivalent to the ''actus quadratus'' or half-

jugerum The jugerum or juger ( la, iūgerum, ', ', or ') was a Roman unit of area, equivalent to a rectangle 240 Roman feet in length and 120 feet in width (about 71×35½m), i.e. 28,800 square Roman feet ( la, pedes quadratum) or about hectare (0.62 ...

(2523 m²) formed by a square with sides of 120

Roman feet The ancient Roman units of measurement were primarily founded on the Hellenic system, which in turn was influenced by the Egyptian system and the Mesopotamian system. The Roman units were comparatively consistent and well documented. Length ...

. The

Heraclean Tables The Heraclean Tablets (in older texts, the ''Heraclean Table(s)''; Lat.''Tabulae Heracleenses'') are bronze tablets found a short distance from the site of Heraclea Lucania, in the direction of Metapontum. They are significant for the study of Ro ...

admonished that each schoenus should be planted with 4

olive tree The olive, botanical name ''Olea europaea'', meaning 'European olive' in Latin, is a species of small tree or shrub in the family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as ''Olea europaea'' ...

s and some

grape vine ''Vitis'' (grapevine) is a genus of 79 accepted species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, ...

s, upon penalty of fines.

References

Obsolete units of measurement Units of length Ancient Greek units of measurement {{Measurement-stub

Length

Area

See also

References