Columbia subject headings:
Europe--Rural conditions.
Europe--Social life and customs--Congresses.
Harvard subject headings:
Europe, German-speaking--Religious life and customs.
Europe, German-speaking--Social conditions.
Literacy--Europe, German-speaking--History--18th century.
Rural development--Europe, German-speaking--History--18th century.
Princeton subject headings:
Europe--Rural conditions--Congresses.
Europe--Social life and customs--Congresses.