regarding greex, coz you said about greex, according to rassias only the people of mani stayed clean during christian invasion. Christians and byzantines mixed greex with many other races (slavs, celts, french and etc.) but only people in mani, arcadia and crete stayed pure. thats why you ll find many greek-paganist symbols within their churchs, while people of mani believe on large quantities in the greek religion rather than the christian one. Though that Byzantines did anything they could to eliminate the greek civilisation (read Apostaule Paule, Nikodimos the armenian and many Byzantine emperors who treated greex as evil) greex managed to survive and on many areas they have retained their purity. Turks tried the same. they brough islamofascism and many areas were mixed with barbarian asians. Nevertheless Greek civilisation has started recovering. it is good, for those who feel greex but not christians, to have a look to rassias's site (www.rassias.gr)
here is his visit in cyprus http://www.rassias.gr/1044.html