Introduction
One of the hottest controversies of the last few years in European prehistory and population genetics has been the origins and dispersal of haplogroup R1b. As recently as 2008 almost everybody thought that R1b had been in Western Europe since the Palaeolithic and re-expanded from the Franco-Cantabrian refugium after the Last Glacial Maximum. 23andMe still describes R1b as the male lineage descending from Cro-Magnon. I have argued for an Indo-European origin of R1b and a Bronze Age invasion of Europe since early 2009. In January 2010, Balaresque et al.
published a paper claiming that R1b came to Europe with Neolithic farmers, a theory vehemently supported by Dienekes Pontikos. Ancient DNA tests have since disproved that Neolithic farmers belonged to R1b.
In August 2012, a paper by
Lee et al. announced that they had found a sample of R1b1b2 at a site in Kromsdorf, Thuringia, dating from circa 2550 BCE. They attributed the site to the Bell Beaker culture.
I immediately doubted the association of R1b with the Bell Beaker culture, and still do. Most people, however, have since taken to believe that the Bell Beaker people are the ones responsible for the diffusion of R1b from Iberia to the rest of Western and Central Europe. It has been brought to my attention that the company BritainsDNA had just
argued in their blog a few days ago in favour of a Beaker dispersal of R1b. I have ample reason to believe that this is false though, and I will demonstrate it in this thread.
Why the Beaker people could not have been the source of European R1b
1)
Geography & Chronology : R1b indubitably originated in Asia, like R1a and R2. R1b1b1 (M73) and R1b1b2 (M269) most likely arose in the Middle East, either in Mesopotamia or Eastern Anatolia. L23, the oldest subclades of R1b1b2, are found around the Caucasus, Eastern Europe, the Balkans and Anatolia. The next subclades in the R1b phylogeny are L51 and L11, which are found mostly in Central Europe, especially in and around Germany, not in Iberia. The Bell Beaker culture, however, clearly originated in central Portugal, then spread from Iberia northward and eastward. The oldest European subclades of R1b (L51 and L11) should all be found in western Iberia to support a Beaker dispersal. That is however not the case, as they are found between Hungary and Scandinavia.
2)
R1b-U106. It could be envisaged that L11 crossed by sea from the Balkans to western Iberia, and that the Proto-Celtic R1b-P312 (aka S116) first appeared in south-western Iberia and spread with the Beaker folk from there. But then what of the other main subclade of L11, namely the Proto-Germanic U106 (S21) ? How did it end up in northern Europe if R1b-L11 migrated by sea to Iberia ? The centre of genetic diversity of R1b-U106 clearly lies between the Benelux and Denmark.
3)
Steppe pastoralists do not suddenly become maritime traders. It is rather far-fetched that the R1b people stopped following the Danube and instead crossed the Alps, made thousands of boats to migrate to Corsica, then Sardinia, then all the way to Portugal and Galicia to start a new culture. How do steppe tribe with a long pastoralist tradition and riding on horses suddenly turn into a maritime people ? Additionally both Portugal and Galicia have the lowest frequency of R1b in Iberia, but plenty of E1b1b, G2a and J2.
4)
A successful large-scale, organised maritime invasion of Iberia from the Balkans is highly improbable. It would take thousands of well-armed soldiers to invade a densely settled place like the Atlantic coast of Neolithic Iberia. If the R1b people were numerous and powerful enough to do it, why not continue to Central Europe or even take over the whole Italian peninsula ? Why seek the furthest possible place as a launching pad to conquer all Western Europe ? That just doesn't make any sense.
5)
The R1b sample from Kromsdorf did not belong to Beaker people, but to Proto-Indo-European from the Unetice culture or its immediate predecessor. Both culture co-existed side-by-side in that region until about 2200 BCE. The maternal lineage recovered from the Kromsdorf site look nothing like the typical Beaker mtDNA (heavy from haplogroup H). They actually look typically Indo-European, a mixture or Caucasian (K1, I1, T1a) and Northeast European (U2e, U5a1, W5a). The very detailed summary of ancient European mtDNA compiled by
Brandt et al. (2013) is unequivocal on this matter. Haplogroups I and U2 were not found on any other Beaker site not any Neolithic site in Europe. They both first appear with the Indo-European Corded Ware and Unetice cultures (see
Supplementary Materials page 30/87).
6) The most important argument is that
Bronze Age and Indo-European values & lifestyle were not present in Iberia during the Beaker period. The Bell Beaker culture started as a late Neolithic or early Chalcolithic society. The R1b cultures of the Balkans were already in the Bronze Age. It is only because R1b had bronze weapons that they could overthrow the rich, advanced and populous Chalcolithic cultures of south-east Europe. They would have needed their bronze weapons to conquer Iberia too. So how comes that the early Beakers of Iberia had no knowledge of bronze working ? This argument alone is enough to destroy the hypothesis that R1b steppe people founded the Beaker culture in Iberia.
I have read Robert Chapman's book,
Emerging complexity: The latter prehistory of south-east Spain, Iberia and the western Mediterranean, and the whole book confirms that Neolithic and Chalcolithic Iberia, including the Beaker culture, could not have been Indo-European. There is a clear continuity from the Megalithic to the Beaker culture, and a clear rupture with the past with the advent of the Bronze Age, which started in Iberia circa 1800 BCE with the El Argar culture around modern Murcia. The Bronze Age society progressively replaced the Beaker culture from west to east over the next centuries.
A few notes from the book:
Neolithic roots of the Beaker culture
- Anthopomorphic idols, also known as fecundity figurines, were found throughout Iberia in Megalithic and Beaker times (p.37). They represent the Mother Goddess, which traces its origins back in the Early Neolithic Levant. The oldest specimens in Iberia date back to 4000 BCE (p.47).
- Beaker tombs, like Megalithic tombs, were communal passage tombs without ascribed status (pp. 82, 190-192). Individuals were typically disarticulated (p.215-6) and bones of various individuals mixed together until the Late Copper Age. No social stratification or prestige items were found in late Beaker sites (p. 236). This contrasts with the single graves of the Indo-Europeans and the elite tumulus/kurgan filled with prestige goods, even for upper class children.
- Radical change of mortuary practice from the Chalcolithic Los Millares culture to the Bronze Age El argar culture (p.195), passing from collective monumental tombs to individual invisible tombs under houses (pit graves).
- Neolithic and Chalcolithic production of finely decorated pottery, stone vessels, idols, etc. come to an end in the Bronze Age (p.168).
- The Tagus Estuary (cradle of the Beaker culture) during the Copper Age had an economy dominated by cereals, olives, vines, cattle and pigs, but hardly any horses.
Indo-European roots of the Argaric culture
- Faïence beans from the Argaric Bronze Age have a similar composition to those found in Bronze Age Wessex (p.34).
- The Bronze Age brings a whole new lifestyle, including new pottery style (less decorated), new burial customs (individual instead of collective), new architecture (multiple-room rectilinear dwellings replace individual circular ones), and new settlement pattern (acropolis defended by high stone walls) (pp. 84, 151, 159, 172).
- The earliest wheeled vehicles in Galicia date from 1720 BCE (p.122), i.e. after the Beaker period ended.
- Horses were used for heavy work and transport in Bronze Age Iberia (p.136), as opposed to meat in the Neolithic and Chalcolithic.
- The first stables in south-east Spain date from the Argaric Bronze Age (p.138), hinting that horses were not ridden before that. Increased frequency of horse bones from the Early Bronze Age, but NOT during the Beaker period (p. 217).
- No evidence of silver working before the Bronze Age in Iberia (p.160).
- Few variations in styles of swords in Spain during the Bronze Age compared to Central Europe (p.164), confirming that bronze working started earlier and was more advanced in Central Europe than in Iberia. Even Ireland produced three times more halberds than the whole of Iberia during the Bronze Age (p. 165). All copper produced in south-east Spain during the Bronze Age amounts to 12 times less than the copper mined daily at Mitterberg in Austria at the time ! (p.165) Metallurgical innovations were much slower in the West Mediterranean than in the Aegean and north-west Europe during the Bronze Age.
- Tin and copper were little exploited in Iberia, Sardinia and Etruria until approximately 1000 BCE, towards the end of the Bronze Age in the rest of Europe (p.166).
- Bronze swords from south-east and northern Spain could have been made in the same place (p.173), hinting that they could have been imported from abroad rather than made locally.
- Separation of the elite from productive activities during the Bronze Age, and beginning of class division (p.174).
- Argaric society (Bronze Age) was stratified with hereditary leadership and ascribed status (pp. 197, 206, 218), unlike Neolithic and Chalcolithic/Beaker societies. The richest Argaric burials date from 1650-1400 BCE.