the biggest one in this case is the birth of european culture not taking place in Germany or the Alps, but in the southern and eastern most part of europe, a place closest to Africa and Asia. so it is very much likely that the older civilizations played crucial roles in the birth of the younger one.
But this is just crazy - the bit I've highlighted, I mean. Such a notion (
viz. that European culture began north of the Alps) may have been prevalent in the 19th century, but I've never heard of it outside of discussions of the dubious (in fact downright fabricated) historiography of romantic nationalism. Mainly in this thread, come to think of it. It was certainly consigned to the dustbin by the time I was in school, anyway, and probably a good generation or two before that. If anything, the impressions I remember of history lessons or textbooks on 'the cradle of civilisation' are at pains to place it in the regions where agriculture, metalwork, pottery and writing began (at least, as far as the Old World is concerned), namely in the valleys of the Nile and the Indus and above all Mesopotamia. Not even in Greece, in other words - let alone Germany!
Edit: the crux of the matter is that no-one is substantially disagreeing with your claim that scholarly Euro-American views
that were once prevalent on this subject were a load of old racially-motivated rubbish: it's just that such views have been considered obsolete for a long time now so to a large extent you're attacking a straw man. Slothrop has been saying this for most of the thread (ed: and luka) but you've studiously ignored him.
Edit edit: that's not to say that the peoples native to the north and west of ancient Europe didn't have rich and fascinating cultures themselves, just that they (obviously) didn't contribute much, if anything, to classical Helenic culture.