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I would find it hard to believe this is accurate but this is what it says:
http://admixturemap.paintmychromosomes.com/
Go to "East Sicily" under Target Population.
Assuming it is correct it tells you within 95% confidence which types of genes entered at different times.
What it calls "Event 2" occurred approximately 654 BCE, meaning just prior to ancient Greek settlement really took off, and before the Carthaginians really gained a strong presence in the region.
Now looking at the admixture you see Irish, Welsh, Scottish, Norwegian, etc. and then some Eastern European groups appear, suggesting that at 654 BCE, the population of eastern Sicily was largely Northern European-like.
"Mediterranean Analysis" shows a population shift in 1110 CE, during the Arab rule. It is during this time that the region gets MOST of its Near Eastern and Mediterranean character including genes shared with Turks, Armenians, and Saudis as well as a large (12%) influx from a Cypriot-like people.
Now select "Event 1", which would have occurred at or slightly before 1474 CE which would have been during Ottoman rule of the Near East. Now you see Greek, Cypriot, Jordanian, and a host of inputs from a bunch of Near Eastern and North African countries coming through once again, suggesting that the population became progressively more Near Eastern, probably during the Byzantine era and the Arab conquests as people from all over the Near East came to settle there. You also see an influx from Northern Italy corresponding with Lombards. This shift was probably due to the fact that Levantine Christians and Greeks living in Turkey had begun migrating west.
This is the exact opposite to what one would expect. People normally say that the population would have been more Near Eastern, and gotten progressively more European with the inputs of Normans, Goths, etc. Apparently not!
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