Columbia subject headings:
Harvard subject headings:
Collective memory--Europe--History--19th century.
Collective memory--Europe--History--20th century.
Europe--Politics and government
Mass media--Political aspects--Europe--History--19th century.
Mass media--Political aspects--Europe--History--20th century.
Princeton subject headings:
Collective memory--Europe.
Communication--Europe--History--19th century.
Communication--Europe--History--20th century.
Europe--History--1789-1900.
Europe--History--20th century.