Preservation of DNA in ancient Egyptian mummies

The presence of DNA has been demonstrated in the cell nuclei of an ancient Egyptian mummy fragment. When extracted, this DNA proved to be degraded to a considerable extent and chemically modified. However, the preservation of nucleic acids in this specimen suggests that applying recombinant DNA techniques to the study of ancient mummified tissues might prove to be a fruitful future area of research.     

Reflections into Ptolemaic glass: Colorless,white, blue,and green inlays from the workshop of Tebtynis

Inlays range among the most aesthetically pleasing and technically challenging glasses produced in the Ptolemaic period. Despite the central role of this phase in the history of glass technology, little is known about the recipes and the technological knowledge of the Egyptian artisans. This paper will thus focus on the study of the materials from the secondary workshop of Tebtynis (Fayum oasis, Egypt). We report the first multi-methodological study comprising textural, chemical, and mineralogical analyses (optical microscopy, scanning electron microscopy coupled with energy-dispersive system, electron probe microanalysis, and μ-Raman spectroscopy) on a set of 81 colorless, white, blue, and green samples carefully selected among the 800+ glasses from the craft area now stored at the Museo Egizio, Turin (Italy). Our study offers the biggest compositional database of well-dated Ptolemaic glasses currently available in the literature, highlighting some interesting novelties regarding the silica and alkali sources, and the coloring and opacifying techniques employed. The results suggest a specialized craft of traditional origin, but open to innovation and experimentation, as expected from transitional phases.     

Influence of Taoism on the invention of the purple pigment used on the Qin terracotta warriors

Until the 19th century, most pigments were based on naturally occurring colored minerals and dyes, with three significant exceptions: Egyptian Blue, Chinese Blue/Purple and Maya Blue. The former two are alkaline-earth copper silicates, and because of this similarity it has been proposed that the Chinese pigments were derived from Egyptian Blue. Herein, we analyzed clumps of pigment from the Qin warriors and discovered that in spite of the structural similarity to Egyptian Blue, the micro-structural morphology of Chinese Purple is very different. Therefore, we believe that the synthesis technology for the Chinese pigments was a by-product of high-refractive index glasses (artificial jades) produced by Taoist monks. Further, the disappearance of these pigments from Chinese art and monuments concurrently with the decline of Taoism not only substantiates the link between the two, but also gives a striking example of how cultural changes in the society affected the scientific developments in ancient China.     

Embryotomy in the 19th Century of Central Italy

An enormous earthquake in L'Aquila in 2009 brought to light human bodies buried in the underground rooms of the medieval St. John the Evangelist church (Casentino, Central Italy). Among the remains, we discovered a human fetus, whose post‐cranial bones were wrapped in bandages and cranial bones were reallocated inside a sort of hood. Anthropometrical investigation revealed an age at death of 29 ± 2 weeks of pregnancy for the little mummy. Radiograph analysis of the fetus showed that the skull was dissected and disconnected from the vertebral column, and the post‐cranial bones were completely disarticulated from the axial skeleton. The body was reassembled in a way of anatomic connection at a later stage. This mummified fetus dated to ad 1840 showed paleopathological evidence of a possible embryotomy and could be a rare and unquestionable case of embryotomy in archaeological context. Copyright © 2014 John Wiley & Sons, Ltd.     

Arabic and Its Role in Egyptology and Egyptian Archaeology

Their lack of Arabic skills limits non-Egyptian Egyptologists in their ability to gain insights into Egyptian culture. The overwhelming reliance on European languages in the field limits the contributions that Egyptian Egyptologists are able to make to the field. The effects of these factors are discussed and suggestions are made as to how the situation can be ameliorated.

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Resumen La inhabilidad de hablar el árabe limita los egiptólogos no-egipcios en su capacidad de comprender de la cultura egipcia. El abrumador dominio de las lenguas europeas en el campo limita las contribuciones que los egiptólogos egipcios pueden hacer por la disciplina. Se discuten los efectos de estos factores y se sugiere como se puede mejorar la situación.

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Résumé La faible connaissance de l’arabe par les égyptologues non-égyptiens limite leurs capacités à comprendre la culture égyptienne. Dans le domaine de l’Egyptologie, la dominance des langues européennes limite les possibilités de contribution des Egyptiens égyptologues dans le domaine. L’effet de ces facteurs est discuté et des suggestions sont faites afin de déterminer comment la situation pourrait être améliorée.

     

Investigating the likelihood of a reservoir offset in the radiocarbon record for ancient Egypt

Some radiocarbon dates for ancient Egypt have been significantly offset from the established historical chronology (see Bonani et al., 2001). In this paper, short-lived plant species collected in Egypt between 1700 and 1900 AD were used to investigate the possibility that the radiocarbon record had been influenced by reservoir effects. AMS radiocarbon measurements were made on 66 known-age samples, resulting in an average offset from expected values of 19 years. The implications of this minor discrepancy on the likelihood of a reservoir process are discussed, and the agreement of the data with recent models of radiocarbon seasonality is also considered.     

CT imaging of human mummies: a critical review of the literature (1979–2005)

The number of computerised tomography (CT) investigations of mummies has increased since the first published study in 1979. However, this approach has never been validated. We present a critical analysis of the literature (1979 to 2005). Relevant articles were selected via a MedLine search and analysed according to CT technique, methodology, and author's speciality. Thirty‐one original articles matched our selection criteria. Of these studies, 42% were authored by radiologists, while 26% had no contribution from radiologists. Hypothesis‐driven papers comprised only 9.7% of the total. While 84% of the studies had a stated purpose for conducting the CT study, only 67% of studies defined their CT protocol clearly. CT was used to study mummification techniques in 74% of instances, and/or to detect disease in 58%. Conclusions based on CT analysis were derived in 84% of studies, but only 32% of these answered specific questions. Furthermore, only 36% of these conclusions were related to the stated purpose of the study. Using the criteria of the grading system we developed, we found that 61% of studies were supported only by weak evidence. We conclude that evidence‐based research with better design should be encouraged in future palaeoradiological studies. Copyright © 2008 John Wiley & Sons, Ltd.     

Optical Coherence Tomography for the non-invasive investigation of the microstructure of ancient Egyptian faience

Optical Coherence Tomography (OCT) is a non-invasive subsurface 3D imaging technique based on the Michelson interferometer. The non-invasive nature of OCT and its speed of acquisition makes it possible to image large volumes of intact objects to yield a complete overview of the microstructure. The production methods for ancient Egyptian faience were first investigated using scanning electron microscopy (SEM) imaging of the microstructure in polished sections and microprobe analysis of the composition of the glass phases. These studies were based on original Egyptian faience objects and laboratory reproductions of faience beads made using three different production methods. The microstructure of the same laboratory samples and the Egyptian faience objects from the British Museum Research Laboratory Collection are re-examined using OCT. It is found that OCT virtual cross-section images can be used to group ancient faience objects into three categories on the basis of the morphology of the surface glaze layer and the glaze/core interaction layer. The OCT images correspond well with SEM images of polished sections of ancient faience objects and laboratory reproductions. The virtual cross-sections produced by OCT are somewhat limited by the penetration depth, which is affected by the high absorption coefficient of the material and, therefore, cannot always provide information on the presence or absence of interparticle glass that binds together the quartz particles in the core. Nevertheless, the top two layers are well imaged and since OCT images can be obtained rapidly and without the necessity of removing a sample, the method can be applied to a very much wider range of ancient faience objects than is possible by SEM examination of polished cross-sections. In summary, this paper examines to what extent OCT can assist the investigation of the production techniques of ancient Egyptian faience.     

Loose‐footed Sails of the Egyptian New Kingdom Ships

The relief from the temple of Ramesses III (1184–1153 BC) in Medinet Habu is often considered to be the most ancient representation of a brailed sail. According to many researchers, the loose‐footed sail and the system of brails were invented in the ancient countries of the Syro‐Canaanite coast and were later adopted by the Ancient Egyptians. However, iconographic material from Ancient Egypt testifies to the indigenous origin of a loose‐footed sail. The article presents an unknown relief from the Amarna period (1352–1336 BC) that further supports this hypothesis.