and eighty-five days for an unencumbered traveller. For as to the land
about the Euxine Sea, which extends from Byzantium to the Lake, it would
be impossible to tell everything with precision, since the barbarians
beyond the Ister River, which they also call the Danube, make the shore
of that sea quite impossible for the Romans to traverse--except, indeed,
that from Byzantium to the mouth of the Ister is a journey of twenty-two
days, which should be added to the measure of Europe by one making the
computation. And on the Asiatic side, that is from Chalcedon to the
Phasis River, which, flowing from the country of the Colchians, descends
into the Pontus, the journey is accomplished in forty days. So that the
whole Roman domain, according to the distance along the sea at least,
attains the measure of a three hundred and forty-seven days' journey,
if, as has been said, one ferries over the Ionian Gulf, which extends
about eight hundred stades from Dryous. For the passage across the
gulf[9] amounts to a journey of not less than four days. Such, then, was
the size of the Roman empire in the ancient times.

And there fell to him who held the power in the West the most of Libya,
extending ninety days' journey--for such is the distance from Gadira to
the boundaries of Tripolis in Libya; and in Europe he received as his
portion territory extending seventy-five days' journey--for such is the
distance from the northern[10] of the Pillars of Heracles to the Ionian
Gulf.[11] And one might add also the distance around the gulf. And the
emperor of the East received territory extending one hundred and twenty
days' journey, from the boundaries of Cyrene in Libya as far as
Epidamnus, which lies on the Ionian Gulf and is called at the present
time Dyrrachium, as well as that portion of the country about the Euxine
Sea which, as previously stated, is subject to the Romans. Now one day's
journey extends two hundred and ten stades,[12] or as far as from Athens
to Megara. Thus, then, the Roman emperors divided either continent