Iran, despite its size, geographic location and past cultural influence, has largely been a blind spot for human population genetic studies. With only sparse genetic information on the Iranian population available, we pursued its genome-wide and geographic characterization based on 1021 samples from eleven ethnic groups. We show that Iranians, while close to neighboring populations, present distinct genetic variation consistent with long-standing genetic continuity, harbor high heterogeneity and different levels of consanguinity, fall apart into a cluster of similar groups and several admixed ones and have experienced numerous language adoption events in the past. Our findings render Iran an important source for human genetic variation in Western and Central Asia, will guide adequate study sampling and assist the interpretation of putative disease-implicated genetic variation. Given Iran’s internal genetic heterogeneity, future studies will have to consider ethnic affiliations and possible admixture.

Le festin est une pratique sociale qui permet aussi bien de négocier et de manipuler ce qui relève du domaine des relations sociales que de confirmer les structures de pouvoir. Aussi le festin peut-il être considéré comme un moven important pour créer des inégalités et pour favoriser l 'émergence de sociétés complexes. La reconnaissance par l 'archéologie de ces manifestations festives est devenue possible et permet de jeter un certain éclairage sur l 'organisation des sociétés concernées. Cet article vise à identifier les résidus de festin provenant de trois sites localisés en Syrie et en Anatolie, retenus parce qu 'ils offrent des perspectives diachroniques sur la période allant du 6e au 4e millénaire avant J.-C, et parce qu 'ils permettent d'ajouter ces informations à ce que nous connaissons actuellement

Abstract

In the 1st millennium BCE Sri Lanka was central to the wide-spanning trading networks in the Western Indian Ocean region. Population agglomerations grew on the coast and further inland, where Anuradhapura emerged as the major central place. Parallel agglomerations formed in the south in Tissamaharama and in the north on Jaffna Peninsula in Kantharodai. The site of Kantharodai on the northern tip of Sri Lanka is the largest known early historic mound site on the Jaffna Peninsula, thought to represent the ancient centre of the region. The Early Historic occupation of Kantharodai began ca. 400-100 BCE. In our study we focus on the older historic occupation phase at Kantharodai, represented by a rich midden deposit of domestic refuse that offer insights into the environmental conditions faced by early occupants of the site and their modes of subsistence. We provide a glimpse into the subsistence strategies of the earliest settled population in Kantharodai who augmented a diet based on domesticated livestock through multiple wild species from forests, swamps, mangroves and marine habitats. Based on the faunal evidence from early Kantharodai, this complex socio-economic structure appears to have been in operation, confirming proposed models of mixed economies in operation in the Early Historic period of the region.

This study presents a new approach for detection and mapping of ancient slag heaps using 16-band multispectral satellite imagery. Understanding the distribution of slag (a byproduct of metal production) is of great importance for understanding how metallurgy shaped long-term economic and political change across the ancient Near East. This study presents results of slag mapping in Oman using WorldView-3 (WV3) satellite imagery. A semi-automated target detection routine using a mixed tuned matched filtering (MTMF) algorithm with scene-derived spectral signatures was applied to 16-band WV3 imagery. Associated field mapping at two copper production sites indicates that WorldView-3 satellite data can differentiate slag and background materials with a relatively high (>90%) overall accuracy. Although this method shows promise for future initiatives to discover and map slag deposits, difficulties in dark object spectral differentiation and underestimation of total slag coverage substantially limit its use. Resulting lower estimations of combined user’s (61%) and producer’s (45%) accuracies contextualize these limitations for slag specific classification. Accordingly, we describe potential approaches to address these challenges in future studies. As sites of ancient metallurgy in Oman are often located in areas of modern exploration and mining, detection and mapping of ancient slag heaps via satellite imagery can be helpful for discovery and monitoring of vulnerable cultural heritage sites.