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This article discusses the absolute chronology of burials from the 3rd and 2nd millennia BC discovered under the mounds of three barrows in the Kordyshiv cemetery in western Ukraine. Its aim is to create a chronological model of the burials by modeling 27 AMS 14C dates obtained from 21 individuals buried in single and collective graves. Dietary analysis of stable carbon (δ13C) and nitrogen (δ15N) isotope values are presented. The Bayesian modeling of the 14C dates from the three Kordyshiv barrows revealed the extremely important role of these monuments as long-term objects used for ritual purposes. At the end of the 3rd millennium BC, the epi-Corded Ware Culture (epi-CWC) community erected a mound over the central burial in Barrow 2, then interred the graves of three additional deceased. After several hundred years Barrow 2 was reused by Komarów Culture (KC) communities from the Middle Bronze Age (MBA) who interred their deceased in the existing mound. The oldest monument with MBA burials was Barrow 3, in which the dead were buried in a two-stage sequence before and after the mid-2nd millennium BC. The youngest dated grave was Burial 1 in Barrow 1, comprising a collective burial that was interred between 1400 and 1200 BC. The additional analyses of carbon and nitrogen isotopes show significant differences in the diet of epi-CWC individuals buried in Barrow 2 from the individuals representing the KC. [ABSTRACT FROM AUTHOR]

The demographic history of East-Central Europe after the Neolithic period remains poorly explored, despite this region being on the confluence of various ecological zones and cultural entities. Here, the descendants of societies associated with steppe pastoralists form Early Bronze Age were followed by Middle Bronze Age populations displaying unique characteristics. Particularly, the predominance of collective burials, the scale of which, was previously seen only in the Neolithic. The extent to which this re-emergence of older traditions is a result of genetic shift or social changes in the MBA is a subject of debate. Here by analysing 91 newly generated genomes from Bronze Age individuals from present Poland and Ukraine, we discovered that Middle Bronze Age populations were formed by an additional admixture event involving a population with relatively high proportions of genetic component associated with European hunter-gatherers and that their social structure was based on, primarily patrilocal, multigenerational kin-groups. By analysing 91 Bronze Age genomes from East-Central Europe, the authors discovered that Middle Bronze Age populations were formed by an admixture event involving hunter-gatherers and that the social structure of resulting population was primarily patrilocal. [ABSTRACT FROM AUTHOR]

Broomcorn millet is one of the most important plants species in pre-history. It was first domesticated in China and subsequently spread across Eurasia becoming a significant staple crop. For a long time, the arrival of millet into Europe was assumed to have taken place in the Neolithic. However, this has recently been challenged, with new direct radiocarbon measurements on reportedly Neolithic charred millet grains in fact dating to the Middle Bronze Age. To aid in understanding the timing of millet's spread across East-Central Europe in the Bronze Age we present the results of over 120 new paired radiocarbon dates and stable isotope (δ 13C and δ 15N) measurements on human bone collagen from individuals across 33 archaeological sites in Poland and western Ukraine. In doing so we directly assess millet's role in the Bronze Age diets. Our results show a clear increase in bone collagen δ 13C values from the middle 15th century BC onwards. This increase is rapid across the whole study area, occurring almost simultaneously with respect to the precision of our radiocarbon dates. Pilot stable isotope data for contemporary animals suggests that they were not foddered with millet and hence it was probably eaten directly by humans. Interestingly, individuals consuming millet appear to be exclusive to geographically upland regions compared to lowland ones. However, not all individuals from upland zone have δ 13C values consistent with millet consumption. Based on the stable isotope evidence for upland millet consumption and the well documented evidence for connections between these people and those in the northern Carpathian Basin at this time, we posit that it is through this route, across the Carpathians, that millet was introduced into the region. An increase of its economic importance in Lesser Poland was plausibly caused by a significant growth in human populations. • Introduction of millet to diet of East-Central Europeans took place in 15th c. BC. • The peak of millet consumption occurred in mid-13th c. BC. • The rise of millet as a staple crop is linked to a demographic growth. [ABSTRACT FROM AUTHOR]