Europe, "until heaven itself should be the only limit to the Persian
realm, and the sun should shine on no country contiguous to his own."
[51]

IV. These schemes, supported by Mardonius, were opposed only by
Artabanus; and the arguments of the latter, dictated by prudence and
experience, made considerable impression upon the king. From that
time, however, new engines of superstitious craft and imposture were
brought to bear upon the weak mind, on whose decision now rested the
fatal war between Asia and Europe. Visions and warnings, threats and
exhortations, haunted his pillow and disturbed his sleep, all tending
to one object, the invasion of Greece. As we learn from Ctesias that
the eunuch Natacas was one of the parasites most influential with
Xerxes, it is probable that so important a personage in the intrigues
of a palace was, with the evident connivance of the magi, the
instrument of Mardonius. And, indeed, from this period the politics
of Persia became more and more concentrated in the dark plots of the
seraglio. Thus superstition, flattery, ambition, all operating upon
him, the irresolution of Xerxes vanished. Artabanus himself affected
to be convinced of the expediency of the war; and the only object now
remaining to the king and his counsellors was to adapt the
preparations to the magnitude of the enterprise. Four additional
years were not deemed an idle delay in collecting an army and fleet
destined to complete the conquest of the world.

"And never," says Herodotus, "was there a military expedition
comparable to this. Hard would it be to specify one nation of Asia
which did not accompany the Persian king, or any waters, save the
great rivers, which were not exhausted by his armament." Preparations
for an expedition of three years were made, to guard against the