Columbia subject headings:
Hamburg (Germany)--Ethnic relations--Congresses.
Jews--Germany--Hamburg--History--Congresses.
Jews--Germany--Prussia--History--Congresses.
Prussia (Germany)--Ethnic relations--Congresses.
Harvard subject headings:
Hamburg (Germany)--Ethnic relations--Congresses.
Jews--Germany--Hamburg--History--Congresses.
Jews--Germany--Prussia--History--Congresses.
Prussia (Germany)--Ethnic relations--Congresses.
Princeton subject headings:
Hamburg (Germany)--Ethnic relations--Congresses.
Jews--Germany (West)--Hamburg--History--Congresses.
Jews--Prussia--History--Congresses.
Prussia (Germany)--Ethnic relations--Congresses.