The introduction of dairying was a critical step in early agriculture, with milk products being rapidly adopted as a major component of the diets of prehistoric farmers and pottery-using late hunter-gatherers. The processing of milk, particularly the production of cheese, would have been a critical development because it not only allowed the preservation of milk products in a non-perishable and transportable form, but also it made milk a more digestible commodity for early prehistoric farmers. The finding of abundant milk residues in pottery vessels from seventh millennium sites from north-western Anatolia provided the earliest evidence of milk processing, although the exact practice could not be explicitly defined. Notably, the discovery of potsherds pierced with small holes appear at early Neolithic sites in temperate Europe in the sixth millennium BC and have been interpreted typologically as 'cheese-strainers', although a direct association with milk processing has not yet been demonstrated. Organic residues preserved in pottery vessels have provided direct evidence for early milk use in the Neolithic period in the Near East and south-eastern Europe, north Africa, Denmark and the British Isles, based on the δ(13)C and Δ(13)C values of the major fatty acids in milk. Here we apply the same approach to investigate the function of sieves/strainer vessels, providing direct chemical evidence for their use in milk processing. The presence of abundant milk fat in these specialized vessels, comparable in form to modern cheese strainers, provides compelling evidence for the vessels having being used to separate fat-rich milk curds from the lactose-containing whey. This new evidence emphasizes the importance of pottery vessels in processing dairy products, particularly in the manufacture of reduced-lactose milk products among lactose-intolerant prehistoric farming communities.
In European and many African, Middle Eastern and Southern Asian populations lactase persistence (LP) is the most strongly selected monogenic trait to have evolved over the last 10,000 years 1 . While LP selection and prehistoric milk consumption must be linked, considerable uncertainty remains concerning their spatiotemporal configuration and specific interactions 2,3 . We provide detailed distributions of milk exploitation across Europe over the last 9k years using c. 7,000 pottery fat residues from >550 archaeological sites. European milk use was widespread from the Neolithic period onwards but varied spatially and temporally in intensity. Surprisingly, comparison of model likelihoods indicates that LP selection varying with levels of prehistoric milk exploitation provides no better explanation of LP allele frequency trajectories than uniform selection since the Neolithic. In the UK Biobank 4,5 cohort of ~500K contemporary Europeans, LP genotype was only weakly associated with milk consumption and did not show consistent associations with improved fitness or health indicators. This suggests other hypotheses on the beneficial effects of LP should be considered for its rapid frequency increase. We propose that lactase non-persistent individuals consumed milk when it became available, but that under particular conditions and microbiological milieux this was disadvantageous, driving LP selection in prehistoric Europe. Comparison of model likelihoods indicates that population fluctuations, settlement density and wild animal exploitationproxies for these driversprovide better explanations of LP selection than the extent of milk exploitation. These findings offer new perspectives on prehistoric milk exploitation and LP evolution.
Das Grab aus Kruszyn, 2009 in Kujawien entdeckt, rechnet zu einer kleinen Regionalgruppe der Schnurkeramik. Es zeichnet sich durch einen verhältnismäßig guten Erhaltungszustand und untypisch zahlreiche, aus Knochen und Geweih gefertigte Werkzeugbeigaben aus. Die aufgedeckten sterblichen Überreste wurden anthropologisch und isotopisch analysiert (La tombe de Kruszyn, découverte en 2009 dans la région de Cujavie, fait partie d’un petit groupe régional de la culture à céramique cordée. Elle est relativement bien conservée et se distingue par un riche assemblage d’outils, fabriqués en os et en cornes. Des analyses anthropologiques et des investigations isotope (Excavated in 2009, the barrow from Kruszyn (the Kujawy region) is related to a small regional group of the Corded Ware culture. Noteworthy is a fairly good state of its preservation and a remarkably numerous assemblage of tools made of bone and antler. Unearthed human remains were anthropologically studied and examined isotopically (Grób z Kruszyna, odkryty w 2009 r. na Kujawach, należy do niewielkiej regionalnej grupy kultury ceramiki sznurowej. Wyróżnia się on stosunkowo dobrym stanem zachowania oraz nietypowo licznym zbiorem narzędzi wykonanych z kości i poroża. Szczątki ludzkie poddano analizom antropologicznym i izotopowym (
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