The Hull of Yenikapı Shipwreck YK 11: a 7th‐century merchant vessel from Constantinople's Theodosian Harbour

YK 11, a small, heavily repaired merchantman, was one of 37 Byzantine shipwrecks excavated at Yenikap? in Istanbul, Turkey. This 7th‐century hull, abandoned in the harbour as a derelict, was studied by archaeologists from the Institute of Nautical Archaeology. Originally built with mortise‐and‐tenon edge joinery, the ship had undergone a series of significant repairs over its lifetime. Repairs included the replacement of planking as well as framing. Although the repaired vessel exhibits evidence of both shell‐first and skeleton‐first shipbuilding techniques, detailed study of the hull remains indicates that the ship was initially designed and built as a primarily shell‐based vessel.     

The Dor 2001/1 Byzantine Shipwreck,Israel: final report

Dor 2001/1 was a Byzantine coaster, about 16.9 m long, with an estimated displacement of 50 tonnes, dated to the first third of the 6th century CE, and loaded with building stones. It was excavated over five seasons, recorded under water, and a section of the shipwreck was retrieved and studied on land. The hull construction was based on frames without any type of planking edge‐fasteners. It is thus among the earliest frame‐based shipwrecks found so far in the Mediterranean. The origin of its construction tradition, with flat frames amidships, hard chine and straight sides, might have been related to a riverine tradition.     

The Hull Construction of Yenikapı 14 (YK 14), a Middle Byzantine Shipwreck from Constantinople's Theodosian Harbour,Istanbul, Turkey

Yenikap? 14 (YK 14) is one of 37 shipwrecks discovered by the Istanbul Archaeological Museums during the Marmaray Project excavations in Istanbul's Yenikap? neighbourhood, the site of Constantinople's Theodosian Harbour. Dated to the 9th century AD, YK 14 is one of a group of Yenikap? round ships constructed using similar methods: it was a flat‐floored, shallow‐draught vessel built primarily of oak using a distinctive combination of shell‐ and skeleton‐based construction methods. Regularly spaced pegs called coaks were used to assemble the hull planking edge‐to‐edge from the keel to the first wale, above which planks were fastened exclusively to frames.     

The Yenikapı Byzantine‐Era Shipwrecks,Istanbul, Turkey: a preliminary report and inventory of the 27 wrecks studied by Istanbul University

Salvage excavations conducted in the Yenikap? quarter of the historic peninsula of Istanbul by the Istanbul Archaeological Museums 2004–2013 have brought to light the Theodosian Harbour on the Sea of Marmara. In addition to thousands of archaeological artefacts, a total of 37 shipwrecks dating from the 5th to the 11th centuries AD were uncovered, constituting the biggest collection of medieval ships uncovered at a single excavation site. The present article deals with 27 wrecks in the charge of the team from Istanbul University's Department of Conservation of Marine Archaeological Objects, consisting of 23 merchantmen and four galleys. The wrecks are presented with their general characteristics. The preliminary evidence from the Yenikap? wrecks regarding the development from shell‐based to skeleton‐based philosophy is discussed, and various building phases presented.     

Iron knees in wooden vessels—an attempt at a typology

Knees were brackets in the structure of a wooden ship. They were introduced in the second half of the 18th century and were in common use for naval and merchant ships in the 19th century. They were fashioned in various designs. A typology of these is proposed based on archaeological and documentary evidence. Iron knees could used to assist the dating of unidentified shipwrecks.     

The Dor 2001/1 Shipwreck, Israel—a Summary of the Excavation

Dor 2001/1 was probably a Byzantine coaster carrying building stones, dated to the end of the 5th or beginning of the 6th century AD. No shell-first construction features were identified, specifically no kind of planking edge-joints; but instead all the essential components showed that it was a frame-based hull. Thus it is apparently among the earliest frame-based shipwrecks found so far in the Mediterranean.
© 2006 The Authors     

蓬莱四艘古船保护技术解析

山东省蓬莱市登州港（蓬莱水城）对出土4艘中外古船的保护,是中国出水（土）古船保护的重要工作之一,通过对1984年和2005年山东省蓬莱市登州港（蓬莱水城）先后发现元朝古船、明朝古船及2艘高丽古船保护技术及成果的探讨与分析,可以为我国古船以及木质文物保护技术提供一些经验或借鉴。     

Enhancing Understanding of the Emergence of Global Trade: Analysis of 17th‐ to 19th‐Century Spanish Coins Recovered from Western Australian Shipwrecks Using Laser Ablation – Inductively Coupled Plasma – Mass Spectrometry (LA–ICP–MS)

This research uses legacy data from shipwrecks to further our understanding of global silver movement in the 17th to 19th centuries by analysing a collection of silver coins held by the Western Australian Museum. Three hundred and eighty‐nine silver coins were analysed for their trace element fingerprint in order to identify provenance. The coins are a selection from the ships Batavia, Vergulde Draeck, Zuytdorp, Rapid and Correio da Azia, all wrecked off the coast of Western Australia between 1629 and 1816. Analysis was undertaken using laser ablation – inductively coupled plasma – mass spectrometry (LA–ICP–MS), a relatively non‐destructive technique with a sensitivity of parts per million to parts per billion. Data were interpreted using linear discriminant analysis (LDA), which allowed the coins of known provenance to be sorted into identifiable subgroups on the basis of their trace and minor elemental fingerprints, while 27 unidentified coins were compared with this database and their mint of origin predicted. These results have implications for the provenance determination of archaeological artefacts of many materials.     

A Quantitative Look at Mediterranean Lateen- and Square-Rigged Ships (Part 1)

Modern-day engineering can be a useful tool to help understand the technological changes which led to the development of the three-masted ships of the modern age of sail, in the beginning of the 15th century. Recent finding and excavation of an increasing number of medieval shipwrecks offers the opportunity, and the authors propose to build a database with technical characteristics of late-medieval vessels in the hope of finding patterns that will help understand the relatively-quick technological evolution of Mediterranean merchant craft of the 14th and 15th centuries.
© 2008 The Authors     

Cargoes of Iron Semi‐Products Recovered from Shipwrecks off the Carmel Coast,Israel

Underwater surveys along the Israeli Carmel coast have revealed six cargoes of iron semi‐products associated with shipwrecks. They are described and dated according to the associated artefacts. Metallographic and chemical analyses on samples from the biggest cargo have determined the stages of the chaîne opératoire, identified the properties of the iron and characterized the iron trade along the Israeli coast. The new discoveries contribute to our understanding of the circulation of iron in the South Levant, which was characterized by an almost complete absence of local iron production. During the Byzantine and Crusader periods, this absence was compensated by long‐distance sea trade, depending on political circumstances and restrictions. Three main types of iron semi‐products were identified: (a) partly consolidated blooms, (b) short pointed bars and (c) elongated pointed bars. The cargoes discovered represent a time period of nearly a millennium. Altogether, 148 iron semi‐products were studied. Of these, 166 were from cargo a, which was dated by coins to around 1130–1200 ce . Those coins could have been imported from Europe for Crusader military and civil uses in the Levant. The iron from cargoes b, d and f, dated perhaps to the Byzantine period, could have been imported from Anatolia or Venice for military and civil purposes.     

Medieval shipbuilding in Catalonia,Spain (13th–15th centuries): one principle,different processes

Late medieval shipbuilding in Catalonia followed the Mediterranean trend in adopting a frame‐first shipbuilding principle with planking placed edge‐to‐edge. The predetermination of frame shapes using moulds had modified the construction process, as seen in the 11th‐century Serçe Liman? vessel with the use of a series of moulds, and 13th‐century Culip VI, with the use of a master mould, rising square and rule. Between the 13th and 15th centuries all known Mediterranean shipwrecks were built using the master‐mould method, but other factors caused variation in the construction process—not the principle—as exemplified by the 14th‐century Les Sorres X built with two overlain keel timbers.     

On the Metal‐Leaf Decorations of Post‐Byzantine Greek Icons

Metal leaves were widely used as decorative materials in post‐Byzantine ritual painting. Fifty‐two icons (mid‐15th to mid‐19th centuries) were studied by means of analytical techniques in order to reveal the materials and techniques encountered in their metal‐leaf decorations. High‐purity gold leaf was used throughout the studied period. Silver was employed rarely and mostly during the latter part of the period in consideration, while metal powders were mostly used from the mid‐18th century onwards. The identification of a gold–silver powder mixture and an ‘electrum’‐type alloy are among the reported findings, which are novel for post‐Byzantine icons. Three micromorphologically distinct highlighting techniques were also documented.     

Exploring Diversity in Household Pottery Traditions in Crusader Greece: a Case Study from the City of Thebes,Boeotia

This paper provides new data on an under‐documented topic in Aegean archaeology, that of the impact of Latin–Greek cohabitation on craftsmanship, socio‐economic organization and household pottery traditions. The chosen approach is a petrographic study of the provenance and technology of 37 cooking pots, jugs, basins and storage jars from the city of Thebes, Boeotia. The ceramics span from the late 12th to the mid‐14th century and thereby cover the periods of Byzantine, Frankish and Catalan control over the city. The analysis indicates that most pottery products were not locally made during these periods. Pottery consumption at Thebes involved, in the 12th/13th century, regional products from northern Boeotia, while pottery supplies from Euboea that had developed under Byzantine rule continued into the 14th century, well after Boeotia and Euboea came into the hands of, respectively, Frankish and Venetian lords in the aftermath of the Fourth Crusade (1204). The petrographic analysis also allows for the characterization of Byzantine and Latin tempering practices of the pottery fabrics. These results highlight phenomena of regional economic reliance in central Greece and provide rare evidence for the cross‐cultural diffusion of technological knowledge in the late medieval Mediterranean.     

Reviews

Book reviewed in this article:
Versunkene Welten. Schiffe und Stadte auf dem Meeresgrund. Die Archaologie unter Wasser. GABRIELLE HOFFMAN
Mare nostrum. MICHEL REDDE
The Roman Quay at St Magnus House, London: Excavations at New Fresh Wharf, Lower Thames Street, London 1974–78. LOUISE MILLER, JOHN SCHOFIELD and. MICHAEL RHODES; edited byTONY DYSON
Roman London. JENNY HALL and RALPH MERRIFIELD
Discoveries. Compiled by HUGH CHAPMAN
Old docks (Shire Album 199). NANCY RITCHIE-NOAKES
Liverpool's historic waterfront. NANCY RITCHIE-NOAKES
Historic architecture of the Royal Navy. JONATHON COAD
The medieval Utrecht boat (BAR S383). ROBERTVLEK
Nautica Talmudica. DANIEL SPERBER
Willem de Vlamingh's explorations of Australia, 1696–1697. W. C. H. ROBERT
Australia unveiled. The share of the Dutch navigators in the discovery of Australia. G. G. SCHILDER
De Ontdekkingsreis van Willem Hesselsz. de Vlamingh in de Jaren 1696–169. G.G.SCHILDER
The voyage to the Great South Land, Willem de Vlamingh 1696–1697. G. G. SHILDER
The Royal Navy's first Invincible 1744-1758 The ship, the wreck and the recovery. BRIAN LAVERY
Historic ships. M. K. STAMMERS
Stratégies maritimes et économie. PAUL ADAM
The construction and fitting of the sailing man of war 1650–1850. PETER GOODWIN
The arming and fitting of English ships of war 1600–1815. BRIAN LAVERY
The 100-gun ship Victory . JOHN McKAY
King Herod's dream, Caesarea on the Sea. ROBERT J. BULL, AVNER RABAN, KENNETH G. HOLUM and. ROBERT L. HOHLFLENDER
Iron ships and steam shipwrecks (papers from the first Australian seminar on the management of iron vessels and shipwrecks). M. McCARTHY (ed.)
From merciless invaders—the defeat of the Spanish Armada (revised edition). A. McKEE
The campaign of the Spanish Armada. PETER KEMP     

On The Grounds Of Post‐Byzantine Greek Icons

The grounds of 51 post‐Byzantine icons (Eastern Orthodox panel paintings) were studied by means of analytical techniques. The artefacts cover the period from the mid‐15th to the mid‐19th century and originate mainly from western (Epirus and the Ionian Islands) and southern Greece (Crete). The findings are examined in the light of technical recipes from related areas and eras, while special insights are gained from the exploration of a gypsum processing recipe by Dionysius of Fourna. A spectrum of ground fabrication practices that is richer than that reported so far or can be deduced from surviving Greek recipes is documented; three instances of ‘grosso‐sottile’ type grounds and a case of ‘inverse grosso‐sottile’ ground are among the reported novel, for post‐Byzantine icons, findings. Moreover, a case of an early icon restoration intervention is documented.     

Thorny burnet (Sarcopoterium spinosum L.) in a Roman shipwreck off the Israeli coast and the role of non-timber shrubs in ancient Mediterranean ships

Abstract

This paper describes and discusses twigs of the dwarf shrub thorny burnet (Sarcopoterium spinosum L.) found in association with submerged remains of a Roman (4th century AD) shipwreck discovered off the Israeli Carmel coast. The twigs were recovered from within a crumpled lead container, interpreted as part of a bilge pump. The find demonstrates again that, under certain favourable circumstances, fragile botanical material can be preserved on ancient shipwreck sites. Similar twigs found previously in association with shipwrecks have been identified as dunnage, i.e. packing material intended to protect the cargo. In this particular case they were apparently used as a bilge pump filter. Thorny burnet grows profusely in the Eastern Mediterranean, but elsewhere only in a few isolated coastal areas most of which are in the vicinity of ancient ports. The wider implications of the past use of non-timber shrubs onboard ships is discussed, in particular, how this may have promoted colonisation by plants of areas beyond their natural distribution, and also how botanical material recovered from shipwrecks may help identify ancient sailing routes and ports of call.     

DISCOVERY,PRODUCTION AND USE OF TIN‐BASED OPACIFIERS IN GLASSES,ENAMELS AND GLAZES FROM THE LATE IRON AGE ONWARDS: A REASSESSMENT*

Tin‐based opacifiers (lead stannate yellow and tin oxide white) were first used in glass production for a short period in Europe from the second to the first centuries bc , and then again throughout the Roman and Byzantine Empires from the fourth century ad onwards. Tin oxide was also used in the production of Islamic opaque glazes from the ninth century ad , and subsequently in enamels applied to Islamic and Venetian glasses from the 12th century ad onwards. A selection of published analytical data for the tin‐opacified glasses, enamels and glazes is summarized, and the methods used in their production are reassessed. The phase transformations occurring when mixtures of lead oxide, tin oxide and silica are fired are investigated with high temperature X‐ray diffraction (XRD) using a synchrotron radiation source, and these results are used to explain the observed differences in the glass, enamel and glaze compositions. Possible reasons for the use of tin‐based opacifiers in the second to first centuries bc , and for the switch from antimony‐ to tin‐based opacifiers in the fourth century ad are suggested, and the possible contexts in which tin‐based opacifiers might have been discovered are considered. The introduction of tin‐opacified glazes by Islamic potters in the ninth century ad is discussed in terms of technological transfer or independent invention.     

Confirmation of the presence of Mycobacterium tuberculosis complex‐specific DNA in three archaeological specimens

This journal published the first reported identification of Mycobacterium tuberculosis complex (MTB) DNA in ancient human remains but concerns were raised about the article two years after publication. These were based on methodology which, in the field of ancient DNA, was still developing. Here we present a re‐examination of the 1993 research conducted on three specimens which exhibited palaeopathologies indicative of tuberculosis. The specimens were: an ulna from pre‐European‐contact Borneo, a spine from Byzantine Turkey, and a lumbar‐sacral spine from 17th century Scotland. There was insufficient material to permit re‐examination of all of the original samples. The earlier results were confirmed in two independent laboratories using different methodologies. MTB DNA complex‐specific DNA amplicons were obtained, and sequenced in both laboratories, in a re‐analysis of samples which supported the earlier findings. Copyright © 2002 John Wiley & Sons, Ltd.     

Shipwreck archaeology of the Lakshadweep Islands, west coast of India

Archaeological investigations in the Lakshadweep Islands have brought to light the presence of a large number of shipwrecks and the archival records have the details of some of these wrecks. Northern islands and reefs of Minicoy were the locations of shipwrecks prior to 1865, but the trend changed with the opening of the Suez Canal. Various organisations including the National Institute of Oceanography, Goa, have focused on Minicoy, Byramgore, Suheli Par, and Bangaram Island for detailed exploration of shipwrecks, and the findings suggest that due to submerged coral reefs, atolls, and other shallow hazards a large number of ships were wrecked in Lakshadweep waters.