The Forgotten Origin of the British - Late Bronze Age


Image of an LBA socketed axehead from Portable Antiquities Scheme

The Forgotten Contribution to the South British Genome.

 A research team looking at ancientDNA led by David Reich had already detected a 97% population replacement across Britain at the close of the Neolithic period, circa 2,300 BCE. They proposed that the Earlier, European Neolithic Farmers of Britain, were replaced by a new people, associated with the Bell Beaker artefact culture. These new people had previously been admixed between European Neolithic Farmers living on the Continent, and recently migrants from the Pontic & Caspian Steppes of Eurasia. 

Northern Europe has more of this migrant Yamnaya / Steppe ancestry which arrived during the 3rd Millennium BCE, while Southern Europe (peaking in Sardinia, then Iberia) has more residual ancestry from the earlier, European Neolithic Farmers. Yet the South British (English) have rather more Neolithic ancestry than other Northern neighbours. This raised questions concerning where had this DNA come from.

Reich's team speculated on this result, and investigated the remains of ancient DNA further. This was later reported on:

Large-scale migration into Britain during the Middle to Late Bronze Age

https://eprints.whiterose.ac.uk/183814/2/Manuscript.pdf

In the above paper, the research team suggest a secondary migration event, that followed the Bell Beaker population replacement. They date it to the end of the Middle Bronze Age / start of the Late Bronze Age circa 900 BCE, although proposed that it had slowly been arriving for some time, before a surge of new arrivals to Britain. They do not pinpoint where these immigrants come from, but by their heavier Neolithic ancestry, it is proposed that they had moved up from further south, most probably from France. How many? The study proposes a 50% DNA replacement in Southern Britain, across England & Wales. I think that is probably comparable to the most recent, highest estimates for the much later Anglo-Danish immigration event.

The tabloids of course, reacted:

From this it has further been proposed, that it may have been this forgotten immigration which brought the p-celtic and / or q-celtic languages to Britain. If you subscribe to identifying Iron Age Britons as Insular Celts then this could represent the arrival in Britain. 

Personally I feel that what we 21st Century CE people believe to be Insular Celtic, reflects a much longer, older exchange of people and ideas across Britain, Ireland, and the Western Seaboard of Europe during the Bronze and Iron Ages. The Romans did much later, claim more recent Belgae migrations into Britain, some tribes even shared names with tribes in France and Belgium. These could represent a continuation of migration, possibly of elites. Prehistoric Britain was very much in contact with the nearby Continent, and a part of Europe.

Conclusion

Those socketed axe heads, and other artefacts of the Late Bronze Age may now be identified as representing a new culture and people, admixing into Southern Britain.

Through studies of ancient genomes, we are witnessing the reveal of a number of prehistoric migration events into Britain. These above, contribute to the modern British genome. Earlier migrations than these are also known. The Bell Beaker folk may have replaced to builders of Avebury, but those Neolithic Farmers had previously replaced the Mesolithic hunter-gatherers already here. Ancient DNA of Neolithic Britons is markedly different to that of any Mesolithic remains, and carries genetic markers from South West Asia.

Neither were the Mesolithic Britons aboriginal. The DNA of Cheddar Man (and others of his time from around Western Europe), originates from Arabia / Asia, and is different to any earlier so far sequenced. They were possibly not of the Magdalenian Culture. The story of the Europeans has often been a series of migrations from regions of Asia, both north and south of the Caucasus.

From this we should judge the Anglo-Danish (Anglo-Saxon plus later Danish arrivals) immigration, as being no more than one of several such events, with earlier examples until recently, lost in prehistory.

Original Nature publication:

https://www.nature.com/articles/s41586-021-04287-4

On BBC:

https://www.bbc.co.uk/news/science-environment-59741723

Earlier Posts:

The Beaker phenomenon and genetic transformation of Northwest Norfolk. A layman's take 2017

https://paulbrooker.posthaven.com/the-beaker-phenomenon-and-genetic-transformation-of-northwest-europe-2017-a-laymans-take

Celebrating my Steppe and Beaker ancestors

https://paulbrooker.posthaven.com/celebrating-my-steppe-and-beaker-ancestors

Own Photo.

The Roman Contribution

I took the above photo of a Roman tombstone at Colchester.  It's the image of a Roman cavalry officer, ruling over a defeated Briton.  It had apparently been damaged during the following Boadiccan Rebellion.  No doubt the Iceni-led rebels against Roman authority would have found this image a tad humiliating.  The point that I want to make here though, is that the cavalry soldier that this tombstone commemorates, may have been Roman, may have died in South-East Britain, but actually hailed from what is now Bulgaria!

The archaeological and historical evidence suggests that as a foreigner in Roman Britain, he was far from alone.  There are a number of similar stories, that suggest that Roman Britain was visited by many other people from across the empire -  not only people from what is now Italy and Bulgaria, but also from what is now the Netherlands, France, Greece, Syria, Lebanon, Germany, Spain, Tunisia, Algeria and Iraq.  Visitors appear to have included not just military, but merchants, specialists, politicians - they all occasionally stare out at us from the archaeology and histories of Roman Britain.

We know that they were here.

Previous anthropological investigations at Trentholme Drive, in Roman York identified an unusual amount of cranial variation amongst the inhabitants, with some individuals suggested as having originated from the Middle East or North Africa. The current study investigates the validity of this assessment using modern anthropological methods to assess cranial variation in two groups: The Railway and Trentholme Drive. Strontium and oxygen isotope evidence derived from the dentition of 43 of these individuals was combined with the craniometric data to provide information on possible levels of migration and the range of homelands that may be represented. The results of the craniometric analysis indicated that the majority of the York population had European origins, but that 11% of the Trentholme Drive and 12% of The Railway study samples were likely of African decent. Oxygen analysis identified four incomers, three from areas warmer than the UK and one from a cooler or more continental climate. Although based on a relatively small sample of the overall population at York, this multidisciplinary approach made it possible to identify incomers, both men and women, from across the Empire. Evidence for possible second generation migrants was also suggested. The results confirm the presence of a heterogeneous population resident in York and highlight the diversity, rather than the uniformity, of the population in Roman Britain.

Leach, Lewis, Chenery etal 2009

I could have alternatively used more historical evidence of individuals - the General from Tunisia, the Syrian in Northern Britain, with a Southern British born wife, the York woman that appears to have had mixed African ancestry, etc, the recurrent Greek names, the Syrians, Algerians and Iraqis that patrolled Hadrians Wall.  As Charlotte Higgens stated in Under Another Sky, Journeys in Roman Britain 2013:  

"In Roman Britain, you do not have to look far to find traces of people sprung from every corner of the empire.  Because of the Roman's insatiable desire to memoralise their lives and deaths, they left their mark.  Some fell in love, had children, stayed.  Many no doubt to, were brief visitors, posted to Britannia and then off to the next job, in Tunisia, perhaps, or Hungary, or Spain.  In the Yorkshire Museum is an inscription made by a man called Nicomedes, an imperial freedman and probably Greek, to go by the name.  He placed an altar to the tutelary spirit of the provenance - 'Britanniae sanctae', sacred Britannia.  Also in York, a man called Demetrius erected two inscriptions in his native Greek - one to Oceanus and Tethys, the old Titan spirits of the sea; the other to the gods that presided over the governer's headquarters.  The Roman empire was multicultural in the sense that it absorbed people of multiple ethnicities, geographical origins and religions.  But Roman-ness - becoming Roman, living as a Roman - also involved particular and distinctive habits, architecture, food, ways of thinking, language, things that Romans held in common whether they were living in York or in Gaza.".

South east Britain was a part of the Roman empire for no less than 370 years, and was strongly influenced by it both before and after that membership.  That represents quite a few generations, maybe around 12 to 18 generations.  So in AD 410, as locals in Britannia fretted about their Brexit, Germanic immigration, and were petitioning Rome to send the troops back, some of their pretty distant ancestors, had witnessed the arrival of Rome with the Claudian Invasion.  That's a long time for contact and admixture to drip feed.

Did this long membership of the empire leave a genetic signature in Britain?  The current consensus is no!  We have not yet found anything in the British admixture, that can be ascribed to Roman Britain.  Not on an autosomal DNA level.  The given explanation is that the Romano-British admixture experience was so cosmopolitan, and diverse, that no one contributing population managed to leave a lasting signature.  Each case was apt to be washed away by the phenomena of genetic recombination.  It hasn't left a background admix in modern South-East British populations that has yet been detected and recognised.

However, enthusiasts that test their DNA haplogroups do often find results that are not easily explained by conventional British population history.  Odd haplogroups turn up.  My own Y-DNA, L-SK1414, with a Western Asian origin, is just one example.  Perhaps some of these rogue haplogroups in Britain, are a smoking gun of Roman Imperial experience. 

The site of Venta Icenorum here in Norfolk.