Roman Lead Pipe Inscription
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A Roman lead pipe inscription is a
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
inscription Epigraphy () is the study of inscriptions, or epigraphs, as writing; it is the science of identifying graphemes, clarifying their meanings, classifying their uses according to dates and cultural contexts, and drawing conclusions about the wr ...
on a
Roman Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of Roman civilization *Epistle to the Romans, shortened to Romans, a letter w ...
water pipe Plumbing is any system that conveys fluids for a wide range of applications. Plumbing uses pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids. Heating and cooling (HVAC), waste removal, and potable water deliv ...
made of
lead Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleabl ...
which provides brief information on its manufacturer and owner, often the reigning
emperor The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...
himself as the supreme authority. The identification marks were created by full text stamps.


Manufacture of pipes

Lead, a by-product of the ancient
silver Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. ...
smelting process, was produced in the
Roman Empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
with an estimated peak production of 80,000 metric tons per yeara truly industrial scale. The metal was used along with other materials in the vast water supply network of the Romans for the manufacture of water pipes, particularly for urban
plumbing Plumbing is any system that conveys fluids for a wide range of applications. Plumbing uses piping, pipes, valves, piping and plumbing fitting, plumbing fixtures, Storage tank, tanks, and other apparatuses to convey fluids. HVAC, Heating and co ...
. The method of manufacturing the lead pipes is recorded by
Vitruvius Vitruvius ( ; ; –70 BC – after ) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work titled . As the only treatise on architecture to survive from antiquity, it has been regarded since the Renaissan ...
and
Frontinus Sextus Julius Frontinus (c. 40 – 103 AD) was a Roman civil engineer, author, soldier and senator of the late 1st century AD. He was a successful general under Domitian, commanding forces in Roman Britain, and on the Rhine and Danube frontier ...
. The lead was poured into sheets of a uniform length, which were bent to form a cylinder and soldered at the seam. The lead pipes could range in size from approximately in diameter, depending on the required rate of flow.


Creation of inscriptions

Since the 19th century, the hypothesis has occasionally been put forward that the Roman inscriptions were created by movable type
printing Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The ...
. A recent investigation by the typesetter and linguist Herbert Brekle, however, concludes that all material evidence points to the use of common text stamps. Brekle describes the manufacturing method as follows: Brekle lists the following reasons for the employment of stamps and against that of movable type: for printing on lead sheets the way the Romans created them, it would be much more practical to use single stamp blocks than sets of individual letters, since the latter would be unstable and would have required a clamp or some similar mechanism to maintain the necessary cohesion. Neither impressions of such clamps nor of the fine lines between the individual letters typical for the use of movable type are discernible in the inscriptions. By contrast, the outer rim of one examined stamp block left a raised rectangular edge running around the inscription text, thus providing positive evidence for the use of such a printing device. In addition, evidence of the poor positioning of movable type, such as individual letters tilting to the right or left or deviating from the baseline – something which could have been expected to occur at least in a few extant specimens – is notably absent. In those inscriptions where the letters are not properly aligned, the entire text is blurred, which clearly points to the use of full text stamps. Finally, it needs to be considered that archaeological excavations have never unearthed ancient sets of movable type, whereas moulds with reversed inscription texts for stamp printing have indeed been recovered.


See also

*
Plumbing Plumbing is any system that conveys fluids for a wide range of applications. Plumbing uses piping, pipes, valves, piping and plumbing fitting, plumbing fixtures, Storage tank, tanks, and other apparatuses to convey fluids. HVAC, Heating and co ...
*
Roman aqueduct The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. Aqueduct water supplied public baths, latrines, fountains, and private households; it also supported min ...


References


Sources

* * * * * Lanciani, R.: "Topografia di Roma antica. I commentarii di Frontino intorno le acque e gli acquedotti. Silloge epigrafica aquaria", in: ''Memorie della Reale Accademia dei Lincei'', Serie III, Volume IV, Classe di Scienze Morali, Rom 1881 (Reprint: Quasar publishing house, 1975), pp. 215–616 *


External links

{{DEFAULTSORT:Roman Lead Pipe Inscription
Lead pipe Lead () is a chemical element; it has symbol Pb (from Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead ...
Plumbing Inscriptions History of printing