Oration was an important skill in Ancient Greece. In some states, if
someone accused you of treason, you had to prove your innocence mainly
by verbal persuation. Of course, the art didn't really attain its full
glory until the Romans, and in particular Cicero, came along. At least,
that's my version of the history. For something more accurate, see
the Encyclopedia Britannica's version.
In our case, we will hold a debate on an as-yet-unchosen topic. Judges
will determine the winners.