Columbia subject headings:
Harvard subject headings:
Europe--Social conditions--18th century--Congresses.
Europe--Social conditions--19th century--Congresses.
Families--Europe--History--Congresses.
Families--History--Congresses.
Home--History--Congresses.
Marriage--Europe--History--Congresses.
Marriage--History--Congresses.
Social history--Congresses
Princeton subject headings:
Europe--Social conditions--18th century--Congresses.
Europe--Social conditions--19th century--Congresses.
Families--Europe--Congresses.
Marriage--Europe--History--Congresses.