Statistics for occurrence #1 of “Antium” in book 3, chapter 24 of Polybius, Histories:
...and on the other hand, in the case of Sicily, they
clearly distinguish their own province in it. So, too, the
Romans, in regard to Latium, stipulate that the Carthaginians
shall do no wrong to Ardea, Antium , Circeii, Tarracina, all of
which are on the seaboard of Latium, to which alone the
treaty refers.
...