Columbia subject headings:
Consensus (Social sciences)--Congresses.
Majorities--Congresses.
Harvard subject headings:
Elections--History--Congresses.
Elections--Rome--History--Congresses.
Majorities--History--Congresses.
Political science--Decision making--History--Congresses.
Political science--Rome--Decision making--History--Congresses.
Voting--History--Congresses.
Voting--Rome--History--Congresses.
Princeton subject headings:
Consensus (Social sciences)--Congresses.
Majorities--Congresses.