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Editorial

King Tut, Neanderthals and Plague – The History News of 2016 (Part 2)

here. Controversy Surrounding King Tut’s Tomb One of the most bizarre stories of the year took place over a few months of the spring, and concerned the constantly fascinating tomb of Tutankhamun. In March, Egypt’s Antiquities Minister, Mamdouh Eldamaty, announced at a press conference that cutting edge radar scans had revealed the presence of hidden chambers in King Tutankhamun’s burial chamber. It was a revelation which sparked intrigue across the globe, as anyone with even the slightest interest in Egyptology began to speculate about what could still be hidden in the tomb of Ancient Egypt’s most famous Pharaoh. A few weeks later, doubts started to appear about the Egyptian Antiquities Ministry’s claims. Radar experts unconnected to the project started to question the findings, while others called for more evidence to be released to back up the claims and allow peer review. In May, the results of another series of scans were released, commissioned by National Geographic to verify the possibility of the existence of a hidden chamber. Announced at the Second Annual Tutankhamun Grand Egyptian Museum Conference in Cairo, the results of the second investigation suggested there was in fact no hidden chamber, directly contradicting the earlier study. The Egyptian Antiquities Authority is now carrying out additional scans in the hope of finding out once and for all if there are any more secrets to King Tut’s tomb. Just How Smart Were the Neanderthals? It’s a question that has been asked many times: just how similar are we to our closest extinct evolutionary cousins, the Neanderthals? For a long time the Neanderthals were considered to be primitive and unintelligent when compared to modern humans. Findings from 2016 however, brought that idea into question like never before. A study published in September added new fire to the long running debate over whether the Neanderthals were capable of creating jewellery. Almost since the moment they were discovered in central France half a century ago, a collection of prehistoric tiny, centimeter-long necklaces created from ivory, shells and animal teeth have been a source of contention among scientists who debate if the Neanderthals could have made the items. Using new research methods relying upon ancient proteins to date and identify bone fragments found at the site, researchers concluded that Neanderthals had lived there, supporting the idea they created the jewellery. Another study published in September carried out an in depth comparison between Neanderthal and modern human ears. The results of the pioneering research challenged the idea that Neanderthals would have only spoken in primitive grunts and groans, suggesting the possibility that Neanderthals had been capable of speech like modern humans. In December, a study from the University of Southampton revealed that Neanderthals had kept returning to the same coastal site on Jersey for a period of over 140,000 years. Through analysing stone tools, the study authors concluded that Neanderthals had kept making regular journeys back to the site for generations. The study raises interesting questions, firstly about what motivated the Neanderthals to keep returning to the site, but also about the extent to which they understood the geography around them – perhaps even some early form of mapping – to keep finding their way back there. What We Know, and What We Don’t About the History of Disease 2016 witnessed a series of shocking revelations and radical theories about the history of disease. In April, a startling study suggested that humans could have played a part in the extinction of Neanderthals by passing on a host of diseases, such as tapeworm, tuberculosis, stomach ulcers and types of herpes. The authors of the study argue that as humans left Africa, they exposed the Neanderthals to new diseases which their immune systems had not built any resistance to. Weakening the hunter-gatherer species, it would have made it harder for them to collect food, in turn causing communities to collapse. A study published in December made the shocking claim that smallpox is nowhere ear as ancient as often thought. Previously, it was believed that smallpox could be traced at least as far back as Ancient Egypt. However, a team of geneticists reconstructed the smallpox genome, based on DNA taken from the remains of victims in a crypt in Lithuania. They found that all strains of the disease had an ancestor from no further back than 1580. If true, the findings would cause a dramatic rewriting of history. Smallpox has been used by historians to explain millions of deaths and tragedies through the centuries, yet if it’s not as ancient as typically thought, such ideas will have to be rethought. Most significantly, the date of 1580 precludes the idea that the European colonisation of the Americas in the fifteenth century saw the devastating introduction of smallpox to the continent; resulting in millions of deaths for the indigenous populations. It was only in 2013 that scientists unequivocally proved that the bacteria Y.pestis played a role in both plague pandemics of the Middle Ages – the Plague of Justinian between the sixth and eighth centuries, and the second pandemic between the fourteenth and seventeenth centuries that peaked with the Black Death. A study published in January 2016 revealed that a single genotype of Y.pestis had persisted in Europe from the fourteenth to the seventeenth centuries. The findings suggest that the plague survived in Europe for three hundred years in as yet unidentified reservoir. In September, a new study reconstructed the bacterial genome responsible for the Plague of Justinian. The study found that the strain of Y.pestis responsible was far more diverse than previously thought, and also infected people far beyond the region historically documented. With plague reemerging in certain parts of the world, such studies have relevance beyond history. The greater our understanding of historical plague outbreaks, the better chance we have of combating it in the present. ]]>

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Breaking News

Unknown Reservoir Stored Plague For 300 Years

Y.pestis bacteria may have persisted in Europe from the fourteenth century to the seventeenth, a period which included the notorious ‘Black Death’, according to a new study. Published in the journal Plos One, the new research has the potential to broaden our understanding of the two devastating plague pandemics that struck Europe, suggesting that the long term persistence of the disease was facilitated by an as yet unknown reservoir. DNA from victims of the second plague pandemic were recovered and analysed by Lisa Seifert from Ludwig Maximilian University of Munich, Germany, and her colleagues. The 30 victims were excavated from two different burial sites in Germany, with the sample covering a three hundred year period. Eight of the thirty skeletons tested positive for Yersinia pestis-specific nucleic acid. From these eight, the team were able to carry out single nucleotide polymorphism (SNP) analysis on five individuals, to further study the Y.pestis bacteria. Four of these individuals were excavated from a grave in Bavaria and carbon dated to the fourteenth century, while the fifth was excavated from Brandenburg in a grave for casualties of the Thirty Years War which took place in the seventeenth century. “Despite a geographical distance of 500 km and in particular a time difference of 300 years, an identical Y. pestis genotype was detected in all five human individuals.” Seifert writes in the study, a conclusion which suggests a single genotype of Y.pestis bacteria existed in Europe for hundreds of years during the second plague epidemic. Fascinatingly, the SNP data from the five individuals in Seifert’s study were fully consistent with three plague victims from the East Smithfield Cemetery in London. “In conclusion, thus far only two different genotypes of Y.pestis have been detected among plague victims of the second pandemic in Europe of which one, described in the present study, covers a time period of 300 years.” Europe was ravaged by two plague pandemics in the Middle Ages, the ‘Plague of Justinian’ which struck the continent between the sixth and eighth centuries, and a second pandemic, (which Seifert’s study focuses on), that struck between the fourteenth and seventeenth centuries and peaked between 1346 and 1353 in a period often referred to as the Black Death. Both plagues took millions of lives, with almost a third of Europe’s population being wiped out during the Black Death. The etiologies of the two plagues have long been discussed among both historians and scientists. Until recently, many scientists believed the plague was in fact a viral disease, or that the two plagues had different origins. Only in 2013 was Y.pestis proven to have unequivocally played a role in both pandemics, when its 1500 year old genome was sequenced. Two main theories exist for how the two deadly pandemics lasted for several hundred years each. One argues that the plague was continuously reintroduced into Europe along major trade routes such as the Silk Road. Another hypothesis is that the plague persisted in Europe over a long period of time in a host that has yet to be identified, for example lice. Seifert et al’s results suggest a different hypothesis to explain the deadly pandemics. “In contrast to these hypotheses, the results of the present study clearly indicate that at least one genotype, which was introduced to Europe at the beginning of the Black Death from Asia, persisted in Europe from the 14th century until the Thirty Years’ War (1618–1648). We therefore suggest a model in which Y. pestis was introduced to Europe from Asia in several waves combined with a long-time persistence of the pathogen in not yet identified reservoirs.” For more information: www.journals.plos.org Image courtesy of Seifert et al ]]>