Originally Posted by Sander
Afaik the people living in Greece today are a different ethnicity than the ones 1000 bc.
This is the old "Fallmerayer Thesis" that was proposed by an Austrian scholar of that name. His argument ran that the "ancient" Greeks had pretty well all perished in the course of the extensive plagues and invasions of late antiquity and the early middle ages and that the modern inhabitants of Greece were mostly descendants of Slavic immigrants with a later admixture of Albanians. This got a lot of notice because it was published in the 1830s at the very time the Greeks were struggling for their freedom from Turkish rule. The Greeks were getting a lot of sympathy at the time because they were the heritors of the glorious civilization of ancient Greece, especially since educated people in Europe and elsewhere were far better educated in the classics than today. I guess the corollary was that it was somehow more acceptable for the Turks to oppress Slavs and Albanians than the heritors of Aeschylus, Phidias and Plato, odd though that may seem to us today.
In any event, I gather the Fallmerayer Thesis has been pretty well disproved by skeletal and DNA analyses. The modern Greeks are in fact the same people that gave us Thucydides, Socrates, Aristotle and all the gang.
I suspect, however, there may have been a "beauty drain" on Greece and other areas under Turkish dominion during the days of the Ottoman Empire, when a lot of the prettiest girls of the subject peoples ended up in the harems of Constantinople while many of the likeliest boys were impressed into the fearsome Janissaries.