at the map of Italy will show us at once how apt is Livy's remark that
Rome was placed in the centre of the peninsula.[6] That peninsula
looks as if it were cleft in twain by the Tiber, or in other words,
the Tiber drains the greater part of central Italy, and carries the
water down a well-marked valley to a central point on the western
coast, with a volume greater than that of any other river south of the
Po. A city therefore that commands the Tiber valley, and especially
the lower part of it, is in a position of strategic advantage with
regard to the whole peninsula. Now Rome, as Strabo remarked, was the
only city actually situated on the bank of the river; and Rome was not
only on the river, but from the earliest times astride of it. She held
the land on both banks from her own site to the Tiber mouth at Ostia,
as we know from the fact that one of her most ancient priesthoods[7]
had its sacred grove five miles down the river on the northern bank.
Thus she had easy access to the sea by the river or by land, and an
open way inland up the one great natural entrance from the sea into
central Italy.[8] Her position on the Tiber is much like that of
Hispalis (Seville) on the Baetis, or of Arles on the Rhone, cities
opening the way of commerce or conquest up the basins of two great
rivers. In spite of some disadvantages, to be noticed directly, there
was no such favourable position in Italy for a virile people apt to
fight and to conquer. Capua, in the rich volcanic plain of Campania,
had far greater advantages in the way of natural wealth; but Capua was
too far south, in a more enervating climate, and virility was never
one of her strong points. Corfinium, in the heart of the Apennines,
once seemed threatening to become a rival, and was for a time the
centre of a rebellious confederation; but this city was too near the
east coast--an impossible position for a pioneer of Italian dominion.
Italy looks west, not east; almost all her natural harbours are on her
western side; and though that at Ostia, owing to the amount of silt