Columbia subject headings:
Harvard subject headings:
Enlightenment--Europe, Central--Congresses.
Europe, Central--Intellectual life--18th century--Congresses.
Learned institutions and societies--Europe, Central--History--18th century--Congresses.
Literature and science--Europe, Central--History--18th century--Congresses.
Princeton subject headings:
Europe, Central--Intellectual life--Congresses.
European literature--History--Congresses.
Freemasons--Europe, Central--History--Congresses.