 In Ancient Greece , the broadest basis of social identity at that time was either the individual city-state or the Greeks (Hellenes) as a group.
<clarity>  In Ancient Greece , the broadest basis of social identity at that time was either the individual city-state or the Greeks (Hellenes) as a group.
 In Ancient Greece , the broadest basis of social identity among Greeks was either the individual city-state or the Greeks (Hellenes) as a group.