"Both Greeks and Jews were the only people who were able to leave their homeland or birth city (natio) and maintain the identity through subsequent generations and both did so through the strength of their respective cultures (The phenomenon of empire as reflected in the experience of Carthage and Rome is of a different order. It is noteworthy that their respective Diasporas disappeared when the mother city lost its political control. ) Both people received a boost during the Hellenistic period: The Jews when they fell in love with Greek logic and the Greeks when they adopted Christianity, a variant of the Jewish religion. The national identity that emerged in the ancient times from the mix of language and religion was a unique kind of supranationalism that became a model for new peoples who entered Western civilization in the Medieval and modern periods."