Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--History--Revolution, 1848-1849
Collective memory--Germany.
Frankfurt am Main (Germany)--History--19th century.
Germany--History--Revolution, 1848-1849.
Revolutions--Germany--Berlin--History.
Revolutions--Germany--Frankfurt am Main--History.
Princeton subject headings:
Collective memory--Germany.
Germany--History--Revolution, 1848-1849.