Polizzello Voices: Iron Age Sicily

Perched on a limestone ridge near modern Caltanissetta, the settlement of Polizzello unfolds like a stratified storybook of Iron Age Sicily. Archaeological layers record occupation and funerary activity between the 9th and 6th centuries BCE (c. 850–541 BCE). Excavations have revealed hut foundations, terraced enclosures, and necropoleis containing richly furnished graves with local ceramics and imported Mediterranean wares. These material traces point to a community rooted in earlier Bronze Age traditions but increasingly tied into wider maritime networks.

Archaeological data indicates cultural exchange with both Phoenician and Greek seafarers during the 8th–6th centuries BCE: imported amphorae and styles appear alongside local pottery traditions, producing hybrid material culture. The 19 ancient individuals sampled from Polizzello provide a genetic dimension to this picture. Their uniparental markers suggest continuity of local maternal lineages combined with paternal lineages that are also present elsewhere in the central Mediterranean. Limited evidence suggests this was not simply replacement by newcomers but rather a complex process of contact, exchange, and selective influx.

Uncertainties remain: pottery and objects document contact, but uniparental DNA offers only part of the ancestry story. Genome-wide analyses, where available, would better resolve timing and directionality of gene flow. For now, Polizzello stands as a place where local endurance met Mediterranean movement.

The genetic snapshot from Polizzello comprises 19 individuals dated to 850–541 BCE. Uniparental markers are informative though partial: Y-chromosome haplogroup G appears in seven sampled males, while mitochondrial lineages are dominated by H (6), with smaller counts of T (2), J (2), U (2), and one labelled H+.

Archaeological DNA patterns like these are consistent with a picture of local continuity blended with Mediterranean contact. Haplogroup G has a long presence in parts of Europe and the Near East and is often associated in European contexts with descendants of early farmers and later regional groups; its prominence here suggests a substantial paternal lineage within the community. The predominance of mtDNA H mirrors a widespread European maternal heritage from the Neolithic onward. The presence of J, T and U maternal haplogroups points to diverse maternal ancestries compatible with both local and wider Mediterranean gene pools.

Caution is essential: uniparental markers reflect only a fraction of ancestry and can be skewed by drift or social practices (e.g., patrilocality). With 19 genomes, conclusions are moderate in confidence — adequate to detect notable trends but not to resolve detailed admixture histories. Genome-wide data and larger sample series would better quantify contributions from Greek colonists, Phoenician traders, and residual Bronze Age inhabitants. For now, the genetic record from Polizzello suggests a community rooted in local lineages while participating in Mediterranean biological and cultural exchanges.