
widely in Asia and Europe to see some of the important scenes of his history (I 4,1),
which is regarded as simply taken from Polybios's praise of autopsy and travel. It is
said that the only places Diodoros can be shown to have visited in person are Rome
and Egypt, and that his erroneous placing of Nineveh on the Euphrates rather than
the Tigris at II 3,2 proves he was probably never in Asia.
[31]
Against this sort of criticism it can be pointed out that under ancient conditions
visits to Egypt and Rome already represented unusually widespread travel for a man
from the tiny city of Agyrion in Sicily, and the fact that Diodoros introduces no
personal anecdotes is far from proving that he never visited Greece and Asia Minor
(though no doubt he never went as far as Mesopotamia).
[32]
Again, the fact that
Diodoros's claims in his preface are similar to those made by other historians in their
prefaces, does not prove that they are untrue: if one were to analyze the prefaces of
modern scholars, one might come up with a list of conventional topoi that could by
the same logic be taken to prove that most of them are lying. Diodoros's claims
concerning the amount of research and travel he did and the length of
[30][31][32]
― 344 ―
time he spent on his work may perhaps be a bit exaggerated, but there is no reason
to dismiss them entirely.
[33]
In all probability, then, Diodoros's account of Diadoch history in XVIII–XX of his
Bibliotheke represents a synthesis of his reading of several historians who covered
that period. Two of the historians whom Diodoros is likely to have read are Douris and
Diyllos, and in all probability their histories had some influence on what Diodoros
wrote, though we can only conjecture what that influence may have been. Some of
Diodoros's information on the Lamian War and the career of Kassandros, for example,
could come from Diyllos; and perhaps those parts of Diodoros XVIII–XX that deal in
such adulatory terms with the career of Ptolemy could derive from the history of
Douris of Samos, who wrote at a time when his native island was under Ptolemaic
control and may even have been installed or at least recognized as tyrant of Samos
by Ptolemy II.
[34]
In addition to these writers, Diodoros probably read at least one
considerably later historian, for his account of the siege of Rhodes in 305/4 is
introduced by a palpably anachronistic survey of Rhodian power and foreign policy,
and the whole account is very plausibly thought to be derived in the main from the
early-second-century historian Zenon of Rhodes.
[35]
However, as already stated several times, Diodoros's major source in this part of
his history was clearly Hieronymos of Kardia, whose concentration on the careers of
Eumenes, Antigonos, and Demetrios is reflected in Diodoros's work. Though it has
been doubted that Diodoros actually used Hieronymos directly, as opposed to getting
his information via an intermediary, there is no good reason for this. Diodoros was
well aware of the existence and nature of Hieronymos's history; he mentions
Hieronymos four times (at XVIII 42,1 and 50,4; XIX 44,3 and 100,3), and each time
refers to him as a historian, calling him in the first passage "the man who wrote the
History of the Diadochoi, " and in the other passages simply "the man
[33][34][35]
― 345 ―
who wrote the history." Numerous specific passages of Diodoros can be assigned to
the authority of Hieronymos beyond any reasonable doubt: the account at XVIII 50,4
of the proposals of alliance Antigonos sent to Eumenes through Hieronymos, for
example; also the account of Hieronymos's failed attempt to take over the bitumen
sources at the Dead Sea on Antigonos's behalf, and the surrounding account of the
Nabataian Arabs in general, at XIX 98, 1–100,2; and further the account of the duel
of Eumenes and Antigonos in inner Asia between the end of 317 and the beginning of
315, in which Hieronymos certainly participated (XIX 12,1–34,8; 36,1–44,5; see esp.
XIX 44,3 for Hieronymos's presence in Eumenes' entourage during these events).
Moreover, Hieronymos's book was certainly still extant in Diodoros's day, for
Diodoros's much younger contemporary Dionysios of Halikarnassos had access to a
copy of it (see De comp. verb. 4,30, and cf. Ant. Rom. I 54). The only argument ever
put forward for denying that Diodoros actually read Hieronymos depends on the