Columbia subject headings:
Harvard subject headings:
Germany--History--1517-1648--Congresses.
Reformation--Germany--Congresses.
Reformation--Germany--Thuringia--Congresses.
Social change--Germany--History--Congresses.
Social change--Germany--Thuringia--History--Congresses.
Thuringia (Germany)--History--Congresses.
Princeton subject headings:
Reformation--Germany--Thuringia--Congresses.
Reformation--Social aspects--Germany--Thuringia--Congresses.
Thuringia (Germany)--History--Congresses.
Thuringia (Germany)--Social conditions--16th century--Congresses.