Between about 140 and 130 BCE, a merchant vessel went down near Populonia on the coast of Tuscany. Its cargo ranged from eastern Mediterranean glass and wine amphorae to lamps and metal utensils. A cluster of smaller objects may have belonged to someone carrying medical supplies: a stone mortar, iron probe, bronze cup, numerous little wooden containers and a tin box containing medicinal tablets. Archaeologists know the wreck as the Relitto del Pozzino, named for the nearby stretch of shoreline. The possible medical kit, found among the cargo, connects the movement of medicines with trade in the late Roman Republic.
The tablets make the find especially valuable. Greek and Roman authors recorded many drug recipes, yet surviving examples of the medicines themselves are exceedingly rare. Several flat, grey discs spent more than two millennia protected within a metal container on the seabed. Modern laboratory analysis could identify zinc minerals and organic materials, including fats, plant remains and pollen. That physical evidence offers an unusual opportunity to compare what someone actually prepared with descriptions preserved in ancient medical literature.
The collection suggests medical activity, but it cannot supply its owner’s biography. It contains no identifying name or record of where the person trained. We do not know whether a practitioner served the crew, travelled as a passenger or dealt in medicines as merchandise, and there is no record of the conditions treated or even whether one of the tablets reached a patient. The objects offer unusually specific physical evidence, while leaving all those questions about their owner unanswered.
The shipwreck off ancient Populonia
The wreck lies in the Gulf of Baratti on the Tyrrhenian Sea, close to ancient Populonia, the Etruscan city called Pupluna. From this part of Italy, ships could connect coastal communities with wider trade across the western Mediterranean. Rome dominated the peninsula in the second century BCE, but merchants still moved materials produced in workshops across the Greek-speaking eastern Mediterranean. Objects made in different regions travelled through multiple hands. The varied cargo recovered at Pozzino belongs to that commercial setting.
The site was first found in 1974 in about eighteen metres of water. Archaeologists investigated in 1982, partly because unauthorized recovery had damaged the remains, and carried out fuller excavations in 1989 and 1990. The Soprintendenza Archeologica della Toscana for Archeologia Viva in 1991 described three campaigns, the danger from looters and work complicated by dense roots of underwater seagrass. The hull had survived only in part. Excavators had to reconstruct its context from fragmentary timbers and goods beneath the vegetation, rather than examine a complete ship lying exposed on the sea floor.
Researchers estimated that the vessel had measured between fifteen and eighteen metres in length and roughly three metres in width. Much of what survived belonged to its central portion. Pottery and transport jars provided the basis for dating the sinking to approximately 140–130 BCE. There is no inscription giving an exact date and no account of how the vessel was lost. Neither the captain nor the weather or other circumstances of its final voyage can be recovered from the present evidence.
Among the cargo were stacks of glass bowls made in the Syro-Palestinian region, pottery associated with Pergamon, Rhodian wine amphorae and lamps with an Ephesian origin. Archaeologists also recovered bronze and tin pouring vessels and a small inkwell. The 2013 archaeological and chemical study by Gianna Giachi and colleagues sets out the range of these goods and suggests an eastern Mediterranean cargo, possibly assembled through an important market such as Delos. Goods from several manufacturing regions had reached the same hold by the time the ship approached the Italian coast.
These origins cannot establish the ship’s exact route. A wine jar made on Rhodes might have been filled, shipped and traded again before this voyage. Imported glass could pass through several ports. Delos was a major centre of exchange, but no ship’s manifest survives to confirm that the Pozzino vessel stopped there. The assemblage connects Populonia with merchants handling eastern Mediterranean goods, but cannot establish the ports visited in sequence.
A wooden chest that no longer exists
The possible medical equipment was found concentrated around an iron lock. Archaeologists counted 136 small boxwood vials and several tin containers, with a stone mortar, an iron probe and a bronze vessel that may have been used for cupping close by. A wooden chest might once have held the group, but its timber had decayed. The lock and the positions of the smaller finds provide the reason to consider the objects together. Their archaeological association is stronger evidence than any one vessel’s medical-looking shape.
Many of the boxwood vials still had fitted lids, often with a conical form. They stood about five or six centimetres high and measured roughly two centimetres across. Fine-grained, durable boxwood was well suited to small turned containers. Each could have kept a powder, ingredient or prepared medicine separate, although no particular content can be assigned to each vial from its shape alone. The total of 136 suggests an organized stock rather than a few household remedies and could be consistent with a practitioner or someone transporting pharmaceuticals for sale.
The chest’s contents cannot identify its owner’s profession beyond doubt. A physician might carry such equipment, but a merchant trading in prepared drugs could also have done so, and the two activities could overlap. The 1991 excavation report even considered the idea of a travelling medical emporium. The published chemical study cautiously suggests the presence of a physician with professional equipment. That is different from proof of a named Greek ship’s doctor, an established salaried post on the crew or a known circuit of patients in Mediterranean ports.
The objects found together could serve related practical tasks. Someone could crush and blend materials in the mortar, keep stocks apart in the wooden containers, examine or apply substances with the probe and perhaps use the bronze vessel for a familiar therapeutic procedure. Most decisively, chemical research has identified medicinal ingredients in the preserved tablets. Taken together, they support a medical interpretation without identifying the owner or the ailments treated.
The tin pyxis and the tablets inside
A pyxis is a small container with a lid. The tin example examined from Pozzino carried the archaeological designation A/6. Radiography showed layers of material inside before the researchers opened it. The container’s protection helped preserve its contents through centuries under seawater, a rare outcome for preparations containing organic components. Without that sealed object, historians would have to rely almost entirely on ancient medical authors’ descriptions rather than on a manufactured substance that survived to be analyzed.
The grey tablets measured around four centimetres in diameter and up to one centimetre thick. They were fairly regular, flattened discs, quite unlike modern pills intended to be swallowed. A textile pattern survived on one surface, showing that cloth had contacted the material while it could still retain an impression. The mark may relate to shaping, drying or wrapping the tablets. It cannot establish exactly which manufacturing step produced it.
The published research is not completely consistent about the number of discs. The abstract of the 2013 paper says that six were recovered, whereas a passage in its main text describes five within pyxis A/6. A later 2021 study devoted to their pollen content again mentions six. Resolving whether the accounts counted fragments or whole tablets differently would require checking the original excavation and conservation documentation. For now, describing a group of about six accurately reflects that unresolved discrepancy.
Researchers commonly describe the substance as a collyrium, a term passing through Latin from Greek and associated with small round loaves. In medical contexts it could denote preparations for the eyes. The form and mineral content of the Pozzino discs are compatible with an eye medicine, but the tin box provides no label naming a disease, and no accompanying text explains how to apply the material. Its proposed ophthalmic purpose is an interpretation supported by several forms of evidence.
What the chemical analysis actually found
The research team studied the tablets as actual manufactured material, sampling small fragments from a broken disc. Different analytical techniques answered complementary questions. X-ray diffraction identified crystalline mineral phases, infrared spectroscopy characterized material types, and scanning electron microscopy combined with elemental analysis described particles and their elements. Gas chromatography and mass spectrometry examined organic compounds. Microscopy and botanical work supplied evidence from fibres, starch grains and pollen. The results must be read together because no single technique could establish the entire composition.
Elemental zinc on its own would not reveal the exact mineral from which it came. Likewise, an organic chemical pattern cannot always identify one plant or animal source, and pollen may have entered through honey, oil, flour, gathered herbs or contamination. Mineralogical, chemical and botanical findings could then be checked against one another. Each trace had to be interpreted within those limits before being connected with a possible ancient ingredient.
The dominant minerals were hydrozincite, a zinc hydroxycarbonate, and smithsonite, a zinc carbonate. Together, zinc-rich substances made up most of the inorganic component. Analyses also identified starch, animal and vegetable fats, pine resin, fibres consistent with flax, small particles of charcoal and beeswax among the organics. The ingredients likely played different roles. A powdered mineral might have been the principal active material, while oils, starch, wax and resin could affect how the preparation was bound, shaped, handled or stored.
No original formula survives specifying the amounts or the sequence in which the ingredients were mixed. The proportions observable in the recovered material cannot reveal every step of manufacture. Minerals may have been powdered and refined, and other components might have been heated or otherwise processed before mixing. Some substances could have changed during storage or after burial. The measurements establish the surviving composition, although the maker’s sequence of operations remains uncertain.
The deliberately manufactured compound gives direct evidence of pharmaceutical preparation in antiquity. It cannot demonstrate that its maker understood zinc chemistry as modern medicine does, or that each identified substance was meant to treat a particular symptom. Nor can its preservation establish therapeutic effectiveness or safety by present-day standards. Its surviving ingredients can be analyzed, but no evidence establishes whether the medicine was effective or safe.
Why zinc suggests medicine for the eyes
The proposed use for eye treatment finds support in later medical descriptions of related minerals. In Book 34 of his Natural History, Pliny the Elder describes several varieties of cadmea, including deposits associated with copper-working furnaces, and discusses material used to prepare eye medicines. Dioscorides, De materia medica 5.74 also distinguishes types of cadmeia and records ophthalmic and other external remedies in a Greek pharmacological work. Their descriptions show how zinc-related mineral materials could fit into established medical practice.
Pliny and Dioscorides wrote in the first century CE, about two centuries after the Pozzino ship sank. Their accounts help explain the wider tradition, but cannot record this owner’s recipe. Ancient cadmea referred to a range of materials recognized by their appearance and how they were obtained, rather than a single precisely named modern mineral. In particular, identifying smithsonite at Pozzino does not prove that it originated as a copper-furnace deposit of the sort Pliny described.
A dry disc would be easier to carry and store than a prepared liquid wash, especially for someone travelling by ship. It might be made ready for an application when needed. Later eye medicines were sometimes made as solid cakes or sticks. A Roman eye-salve stamp from the Saalburg from the second or third century CE names particular eye preparations and complaints, showing how such products could be identified. The Saalburg stamp is later and from a different site, so it illustrates the practice without documenting the use of Pozzino’s tablets.
We do not know whether the preparation was diluted, mixed with another ingredient or worked into an ointment before external use. Applying a softened piece to an affected eyelid is plausible, but remains a proposal. Nothing in the surviving tablets establishes that they were dissolved in wine, placed directly into an eye or administered a particular number of times each day. No patient history or directions accompanied them.
Starch, fats and resin: making a medicine that could travel
The starch may have helped transform powdered minerals into tablets firm enough to transport and handle. Grains identified under the microscope had features that researchers considered consistent with heating or cooking. A cereal, possibly wheat, could have supplied the material, although that specific source is not certain. This evidence suggests that a prepared starch-containing ingredient may have been mixed into the compound before the discs were shaped. It does not reconstruct the complete sequence of manufacture.
Both animal-derived and plant-derived fats appeared in the analysis. Olive oil could account for some of the latter, but the original sources of all lipids cannot be assigned confidently. Ancient writers describe oil from unripe olives, called oleum acerbum or omphacium, as an ingredient in preparations. These names provide a possible parallel without identifying the oil in this particular tablet. Oil may have helped bind ingredients or altered the compound’s texture, though its exact purpose remains uncertain.
Pine resin could have made the mixture more adhesive and easier to keep together. Ancient craftspeople and medical compounders used resins in several kinds of preparation. The researchers suggested that resin might also have slowed deterioration of the oils, perhaps limiting microbial growth. Those proposed functions were not demonstrated as clinical effects on infection. Beeswax, likewise, could have assisted with consistency and protection, but its presence does not establish one exclusive role in the tablets.
Flax-like fibres were detected inside the preparation, alongside the textile impression on one tablet. Researchers proposed that fibres may have reduced the tendency of the discs to crumble. They could alternatively be connected with the process of shaping or wrapping them. The maker left no instructions to distinguish between these possibilities. Charcoal is equally difficult to assign: it may have been included intentionally or remained from heating or preparing another ingredient.
The pollen inside the tablets
Pollen grains can preserve distinctive microscopic features long after most plant tissues decay. The first analysis reported many grains, notably olive pollen, as well as cereal-type pollen and that of numerous flowers visited by insects. Some grains were clustered together. Their presence could reflect a bee-derived ingredient carrying pollen from several plants. The pollen cannot show that a medical practitioner selected each of these plants as a treatment.
Marta Mariotti Lippi and Gianna Giachi revisited this evidence in a study published in Palynology, volume 45 (2021). They examined possible routes by which olive pollen reached the compound, including pollen gathered by bees and oil made from unripe olives. The possibilities remain hypotheses, even after detailed study. Neither the grains nor the proposed sources establish an exact ingredient list or show that the tablet contained a separate medicinal dose of every plant detected.
These laboratory findings cannot supply a complete ancient recipe. Olive oil, honey, wheat, resin and several herbs could be combined into a convincing modern reconstruction, yet the original analysis did not prove that precise mixture. Some substances were identifiable, while others appeared only as traces capable of entering through more than one route. They provide clues to its manufacture, but too many steps remain unknown to reproduce the compound securely.
The bronze cup and ancient cupping
Another object in the presumed kit was a bronze vessel interpreted as a possible cupping cup. In Greek and Roman medicine, a cup could be attached to the skin by lowering pressure inside it, drawing the skin upward. Some forms of cupping were applied over unbroken skin; others followed a small incision so that blood could be drawn. The Pozzino vessel was identified through its shape and comparisons with known equipment. It did not come with a label confirming a particular treatment.
A description of cupping appears in Celsus, De medicina 2.11, a text written in the first century CE. He describes bronze cups in which burning lint could be placed before application, and horn cups from which air might be withdrawn through a small opening. His account also distinguishes using the cup over intact skin from placing it above cuts made with a blade. The procedure was therefore clearly known in ancient medicine, but Celsus wrote roughly two centuries after the shipwreck and cannot document an individual treatment at Pozzino.
Celsus explained cupping within the medical theories of his own time, including the supposed removal of harmful material and relief of local complaints. Its appearance in a medical treatise does not establish that the practice worked as expected. The Pozzino vessel cannot identify whether someone treated muscular pain, an injury, a respiratory problem or another condition. No evidence connects it with a particular sailor’s recovery or even a documented use aboard the ship.
Some illustrations accompanying discussions of the wreck display instruments from other finds. They help identify the forms of ancient medical metalwork, though none depicts the Pozzino chest. A Roman speculum pictured in a comparative arrangement, for example, cannot be counted among the objects actually excavated from this wreck.
The mortar and the work of compounding
A small stone mortarium was found with the suspected medical supplies. Such a bowl could be used for crushing, grinding and mixing substances with a pestle. Reducing minerals to fine powder and combining them with binding ingredients would be a routine part of compounding a medicine. Particle size and consistency would be particularly important for preparations intended near the sensitive surface of an eye. The mortar helps explain what activities the equipment could support.
No cited evidence identifies the last substance ground in the Pozzino mortar or connects a residue from it directly with the surviving zinc tablets. An owner might have bought ready-made discs rather than manufactured them on the vessel. The mortar demonstrates an ability to grind or mix, while leaving open whether it was used to prepare these tablets, other remedies or even nonmedical materials. Its presence should not become an invented workshop scene aboard the ship.
The picture used for comparison here shows a Roman mortarium from another context, rather than the excavated Pozzino stone bowl. It helps explain the basic grinding motion and the form of such vessels. Similarity of shape cannot establish that the wreck’s instrument was identical, or that every Roman mortar served the same purpose. Archaeological context and any surviving traces of use are needed for a narrower identification.
The iron probe and what it could do
Excavators also recorded an iron specillum, a slender probe. Implements of this type could be used to examine a body or manipulate and apply substances. Their functions depended on design and circumstances, so the precise archaeological description matters. The iron probe may be consistent with medical work, but it should not be renamed a scalpel or treated as evidence of substantial surgery on the ship.
Archaeological collections from Roman sites include many small metal probes, spoons and related tools. The Wellcome Collection’s photograph of instruments from Pompeii shows a comparable group of such metal tools. They show possible uses in applying medicines or examining injuries. That larger assemblage tells us nothing about tools missing from the Pozzino chest. There is no basis for asserting that its owner also carried scalpels, tweezers, forceps and every other tool known from later Roman collections.
Association with the tablets, containers and mortar makes a medical function for the Pozzino probe reasonable. Its shape could also allow it to assist with delicate tasks involving wounds or the eyes, while some uses would not necessarily have been medical. Its possible uses do not establish what the owner did with it. No list of supposed treatments can be recovered merely by imagining every operation the implement might permit.
The wooden vials and glass vessels
The 136 small boxwood vials testify to the importance of storage in ancient medicine. Their fitted covers could have kept ingredients separate and reduced accidental mixing while an owner travelled with several preparations. Some may have held finished drugs, some unprocessed materials and others small goods with no therapeutic purpose. Their individual contents have not been securely established in the surviving descriptions. Their number nonetheless suggests an organized stock requiring containers that could withstand regular handling.
Glass vessels were also present in the ship’s wider cargo, including pieces manufactured in the eastern Mediterranean. Such vessels could hold oils and other liquids, including medicines, but they were also ordinary trade goods. Their presence somewhere in the wreck is insufficient to assign them to the person associated with the chest. The commercial cargo and the items concentrated near the lock must be assessed as separate find groups before assigning any vessel a medical function.
The pictured glass unguentarium is a comparative object. Narrow-necked glass vessels could hold perfumes, oils or other liquids and might sometimes have been used for treatments. Their range of possible uses makes findspot and residue especially important when identifying their purpose. At Pozzino, the glass cargo supports evidence for trading networks; the concentration of wooden and metal containers beside the lock offers a more specific basis for the proposed medical assemblage.
What Pompeii can and cannot tell us about Pozzino
Pompeii provides many well-preserved Roman objects because Vesuvius buried the city in 79 CE. Medical instruments from the so-called House of the Surgeon are often illustrated in discussions of ancient treatment. That destruction occurred more than two centuries after the sinking at Pozzino, however, and the Pompeian house was a different archaeological environment. Its contents cannot be transferred wholesale into the inventory of a small merchant vessel from the second century BCE.
The Milwaukee Public Museum’s discussion of Greco-Roman medical equipment explains how some familiar displays of Greco-Roman surgical equipment use modern reproductions of tools from Pompeii and Herculaneum. Replicas can demonstrate shape or scale, but they remain distinct from excavated originals. The Wellcome Collection’s archival photograph of Pompeian surgical instruments documents another group from that city. Neither image provides a direct record of the contents of the Pozzino chest.
The illustration shows examples of equipment used in the wider Greek and Roman medical world, rather than a reconstruction of the objects recovered from the Pozzino shipwreck. The surviving finds do not establish the owner’s complete collection of instruments, the procedures performed or the identities of any patients.
Was the owner a Greek doctor?
The cargo’s eastern Mediterranean origins fit a time when Greek-language medical ideas circulated throughout the Roman Republic. Many medical authors whose works have survived also wrote in Greek. Yet goods and knowledge can travel without revealing the ethnicity of an individual owner. No inscription, Greek personal name, professional certificate or comparable identification was found among the reported chest contents. We cannot establish the person’s language, education or nationality from this equipment.
The owner could have travelled as a passenger carrying medicines, traded in preparations, combined commerce with medical treatment or treated people encountered during voyages. Crew members might have sought assistance, but no source documents a patient or a permanent medical officer on the vessel. A travelling practitioner remains a persuasive working interpretation when the finds are considered together. It is still an interpretation, and should be presented with that qualification rather than as a recovered biography.
Even without identifying the owner, the finds link medical preparation with Mediterranean commerce. Prepared substances and raw materials could move alongside glass, amphorae and other cargo, supported by sturdy containers and equipment for mixing and handling them. Medical work depended on manufacture, storage and distribution as well as on the expertise of a practitioner. Pozzino offers archaeological evidence for how substances and equipment associated with healing moved alongside goods traded across the Mediterranean.
Why the surviving tablets matter
Ancient medicine is often reconstructed mainly from books by writers such as Pliny and Dioscorides. Their descriptions preserve terminology and recipes, but cannot tell us exactly what every practitioner mixed. At Pozzino, a protected tablet supplies material evidence: zinc carbonates, starch, animal and vegetable fats, resin, fibres, wax and pollen. Its resemblance to later accounts of eye preparations makes an ophthalmic use plausible. The ancient owner left no label naming that use, so the interpretation cannot become a certainty.
The Italian Ministry of Culture’s museum record lists material from the Pozzino wreck in the holdings and display of the Museo Archeologico del Territorio di Populonia at Piombino. The artifacts recovered from Pozzino provide more direct evidence of its owner’s equipment than generic illustrations of Roman medical tools. The surviving little containers and tablets preserve traces of how supplies were made, carried and stored in the late Republic.
Around 130 BCE, someone aboard a merchant ship crossing Mediterranean trade networks carried a carefully manufactured medicinal preparation protected in a metal container. The shipwreck does not tell us who used it, whether it helped a patient or how its owner obtained it. The preserved tablet can be analyzed alongside later written descriptions of therapeutic ingredients, offering physical evidence that recipes alone cannot provide.
