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📖 Xurxo Ayán es uno de los autores de «Locus amoenus, locus terribilis. El campamento de prisioneros del Prado de la Zarza (Guadalajara), 1938-1939», que resume los resultados de la intervención arqueológica e investigación en fuentes primarias del campo de prisioneros de Prado de la Zarza (Cortes de Tajuña, Alcolea del Pinar, Guadalajara).

🔓 Para leer en #AccesoAbierto: doi.org/10.1344/ebre38.2024.14

@histodons
@archaeodons

**Tel Shiqmona during the Iron Age: A first glimpse into an ancient Mediterranean purple dye ‘factory’**

“_It is the only site in the Near East or around the Mediterranean—indeed, in the entire world—where a sequence of purple-dye workshops has been excavated and which has clear evidence for large-scale, sustained manufacture of purple dye and dyeing in a specialized facility for half a millennium, during the Iron Age (ca. 1100–600 BCE)._”

Shalvi G, Sukenik N, Waiman-Barak P, Dunseth ZC, Bar S, et al. (2025) Tel Shiqmona during the Iron Age: A first glimpse into an ancient Mediterranean purple dye ‘factory’. PLOS ONE 20(4): e0321082. doi.org/10.1371/journal.pone.0.

#OpenAccess #OA #Research #DOI #Article #Ancient #Culture #Archaeology #Archaeodons #IronAge #Mediterranean #Academia #Academics @archaeodons

doi.orgTel Shiqmona during the Iron Age: A first glimpse into an ancient Mediterranean purple dye ‘factory’Purple-dyed textiles, primarily woolen, were much sought after in the Ancient Near East and the Mediterranean, and they adorned the powerful and wealthy. It is commonly assumed that in antiquity, purple dye—extracted from specific species of marine mollusks—was produced in large quantities and in many places around the Mediterranean. But despite numerous archaeological excavations, direct and unequivocal evidence for locales of purple-dye production remains very limited in scope. Here we present Tel Shiqmona, a small archaeological tell on Israel’s Carmel coast. It is the only site in the Near East or around the Mediterranean—indeed, in the entire world—where a sequence of purple-dye workshops has been excavated and which has clear evidence for large-scale, sustained manufacture of purple dye and dyeing in a specialized facility for half a millennium, during the Iron Age (ca. 1100–600 BCE). The number and diversity of artifacts related to purple dye manufacturing are unparalleled. The paper focuses on the various types of evidence related to purple dye production in their environmental and archaeological contexts. We utilize chemical, mineralogical and contextual analyses to connect several categories of finds, providing for the first time direct evidence of the instruments used in the purple-dye production process in the Iron Age Levant. The artifacts from Shiqmona also serve as a first benchmark for future identification of significant purple-dye production sites around the Mediterranean, especially in the Iron Age.

🔴 **Long-term hunter-gatherer continuity in the Rhine-Meuse region was disrupted by local formation of expansive Bell Beaker groups**

“_We document an exception to this pattern in the wider Rhine-Meuse area in communities in the wetlands, riverine areas, and coastal areas of the western and central Netherlands, Belgium and western Germany, where we assembled genome-wide data for 109 people 8500-1700 BCE. Here, a distinctive population with high hunter-gatherer ancestry (∼50%) persisted up to three thousand years later than in continental European regions, reflecting limited incorporation of females of Early European Farmer ancestry into local communities._”

Olalde, I. et al. (2025) 'Long-term hunter-gatherer continuity in the Rhine-Meuse region was disrupted by local formation of expansive Bell Beaker groups,' bioRxiv (Cold Spring Harbor Laboratory) [Preprint]. doi.org/10.1101/2025.03.24.644.

#Preprint #Science #Biology #Genetics #Archaeology #Archaeodons #Anthropology #Europe @archaeodons

bioRxiv · Long-term hunter-gatherer continuity in the Rhine-Meuse region was disrupted by local formation of expansive Bell Beaker groupsThe first phase of the ancient DNA revolution painted a broad-brush picture of European Holocene prehistory, whereby 6500-4000 BCE, farmers descending from western Anatolians mixed with local hunter-gatherers resulting in 70-100% ancestry turnover, then 3000-2500 BCE people associated with the Corded Ware complex spread steppe ancestry into north-central Europe. We document an exception to this pattern in the wider Rhine-Meuse area in communities in the wetlands, riverine areas, and coastal areas of the western and central Netherlands, Belgium and western Germany, where we assembled genome-wide data for 109 people 8500-1700 BCE. Here, a distinctive population with high hunter-gatherer ancestry (∼50%) persisted up to three thousand years later than in continental European regions, reflecting limited incorporation of females of Early European Farmer ancestry into local communities. In the western Netherlands, the arrival of the Corded Ware complex was also exceptional: lowland individuals from settlements adopting Corded Ware pottery had hardly any steppe ancestry, despite a characteristic early Corded Ware Y-chromosome. The limited influx may reflect the unique ecology of the region’s river-dominated landscapes, which were not amenable to wholesale adoption of the early Neolithic type of farming introduced by Linearbandkeramik, making it possible for previously established groups to thrive, and creating a persistent but permeable boundary that allowed transfer of ideas and low-level gene flow. This changed with the formation-through-mixture of Bell Beaker using populations ∼2500 BCE by fusion of local Rhine-Meuse people (9-17%) and Corded Ware associated migrants of both sexes. Their expansion from the Rhine-Meuse region then had a disruptive impact across a much wider part of northwest Europe, including Britain where its arrival was the main source of a 90-100% replacement of local Neolithic peoples. ### Competing Interest Statement The authors have declared no competing interest.

🔴 **North Pontic crossroads: Mobility in Ukraine from the Bronze Age to the early modern period**

_"We infer a high degree of temporal heterogeneity in ancestry, with fluctuating genetic affinities to different present-day Eurasian groups. We also infer high heterogeneity in ancestry within geographically, culturally, and socially defined groups. Despite this, we find that ancestry components which are widespread in Eastern and Central Europe have been present in the Ukraine region since the Bronze Age."_

Lehti Saag et al., North Pontic crossroads: Mobility in Ukraine from the Bronze Age to the early modern period. Sci. Adv.11, eadr0695 (2025) .DOI: doi.org/10.1126/sciadv.adr0695

#OpenAccess #OA #Research #Article #DOI #Science #Genetics #Genomics #History #Archaeology #Archaeodons #Ukraine #BronzeAge #Academia #Academics @science @archaeodons

🔴 📜 **Painstaking work to conserve Ireland’s oldest paper documents begins**

Sammy Gecsoyler

_“The ecclesiastical register, which dates back to the medieval period, is about 650 years old. It belonged to the former archbishop of Armagh Milo Sweteman.”_

🔗 theguardian.com/world/2024/dec

#News #Archaeology #Archaeodons #Ireland #Europe @archaeodons

The Guardian · Painstaking work to conserve Ireland’s oldest paper documents beginsPar Sammy Gecsoyler

🔴 **Ancient genomics support deep divergence between Eastern and Western Mediterranean Indo-European languages**

_“We find a deep east-west divide of steppe ancestry in Southern Europe during the Bronze Age. Specifically, we show that the arrival of steppe ancestry in Spain, France, and Italy was mediated by Bell Beaker (BB) populations of Western Europe, likely contributing to the emergence of the Italic and Celtic languages. In contrast, Armenian and Greek populations acquired steppe ancestry directly from Yamnaya groups of Eastern Europe.”_

Yediay, F.E. et al. (2024) 'Ancient genomics support deep divergence between Eastern and Western Mediterranean Indo-European languages,' bioRxiv (Cold Spring Harbor Laboratory) [Preprint]. doi.org/10.1101/2024.12.02.626.

#Preprint #Ancient #History #IndoEuropean #Languages #Linguistics #Archaeology #Archaeodons #Anthropology #BronzeAge #Academia #Academics @linguistics @archaeodons @anthropology

bioRxiv · Ancient genomics support deep divergence between Eastern and Western Mediterranean Indo-European languagesMechanistic understanding of the immune checkpoint receptor PD1 is largely based on mouse models, but human and mouse PD1 orthologs exhibit only 59.6% identity in amino acid sequences. Here we show that human PD1 is more inhibitory than mouse PD1 due to stronger interactions with the ligands PDL1 and PDL2 and with the effector phosphatase Shp2. A novel motif highly conserved among PD1 orthologs in vertebrates except in rodents is primarily responsible for the differential Shp2 recruitment. Evolutionary analysis suggested that rodent PD1 orthologs uniquely underwent functional relaxation, particularly during the K-Pg boundary. Humanization of the PD1 intracellular domain disrupted the anti-tumor activity of mouse T cells while increasing the magnitude of anti-PD1 response. Together, our study uncovers species-specific features of the PD1 pathway, with implications to PD1 evolution and differential anti-PD(L)1 responses in mouse models and human patients. ### Competing Interest Statement E.H. consults for Tentarix Biotherapeutics. J.D.B. consults for Valora and DrKumo and serves as Chief Scientific Officer for Paramita Therapeutics and Pathfinder. The other authors declare that they have no competing interests.