That the concept of Western civilisation is a social construct is well known by some social scientists. However, this ambiguous to the point of fallacy notion seems to retain its powerful grip on the minds of about everyone else.
In his book The East Face of Helicon: West Asiatic Elements in Greek Poetry and Myth, M.L. West uses his encyclopaedic knowledge of Ancient Greek poetry to prove beyond any doubt that Ancient Greece culturally belong to the Near East, rather than to the West, which both symbolically and materially arose two thousands years later.
The re-appropriation of Ancient Greece as the cradle of the Western Civilisation kicked off during the Renaissance.