The expression "grand narrative" is still important and relevant today.
Grand narrative or “master narrative” is a term introduced by French philosopher Jean-François Lyotard in his classic 1979 work The Postmodern Condition: A Report on Knowledge, in which Lyotard summed up a range of views which were being developed at the time, as a critique of the institutional and ideological forms of knowledge.
The "national character" of a people is, for example, a grand narrative. This involves the identification of people, ethnicity, and races according to specific, indomitable cultural characteristics.