His information respecting the latter,
however, as might be expected, is very erroneous. Yet, that even its very
northern parts were known by name to the Romans soon after his death, is
apparent, from this circumstance, that Diodorus Siculus, who died towards
the middle of the reign of Augustus, mentions Orkas; which, he says, forms
the northern extremity of the island of Britain. This is the very first
mention of any place in Scotland by any writer.
One of the first objects of Augustus, after he had reduced Egypt, was to
explore the interior of Africa, either for the purpose of conquest, or to
obtain the precious commodities, especially frankincense and aromatics,
which he had learned were the produce of those countries. AElius Gallus was
selected by the emperor for this expedition, and he was accompanied by the
geographer Strabo; who, however, has not given such accurate information of
the route which was pursued as might have been expected. This is the more
to be lamented, as Pliny informs us that the places which were visited
during this expedition are not to be found in authors previous to his time.
Gallus was directed by the emperor to explore Ethiopia, the country of the
Troglodytae and Arabia.
