Columbia subject headings:
Harvard subject headings:
Enlightenment--Germany--Halle an der Saale--Congresses.
Halle an der Saale (Germany)--Intellectual life--18th century--Congresses.
Princeton subject headings:
Enlightenment--Germany--Halle an der Saale--Congresses.
Halle an der Saale (Germany)--Intellectual life--18th century--Congresses.