of their ancestral kings. But the other conspirators had not
struggled solely to exchange one despot for another. With a new
monarchy arose a new oligarchy. Otanes was even exempted from
allegiance to the monarch, and his posterity were distinguished by
such exclusive honours and immunities, that Herodotus calls them the
only Persian family which retained its liberty. The other
conspirators probably made a kind of privileged council, since they
claimed the right of access at all hours, unannounced, to the presence
of the king--a privilege of the utmost value in Eastern forms of
government--and their power was rendered permanent and solid by
certain restrictions on marriage [40], which went to maintain a
constant alliance between the royal family and their own. While the
six conspirators rose to an oligarchy, the tribe of the Pasargadae--
the noblest of those sections into which the pure Persian family was
divided--became an aristocracy to officer the army and adorn the
court. But though the great body of the conquered Medes were kept in
subject inferiority, yet the more sternly enforced from the Persian
resentment at the late Median usurpation, Darius prudently conciliated
the most powerful of that great class of his subjects by offices of
dignity and command, and of all the tributary nations, the Medes
ranked next to the Persians.

IV. With Darius, the Persian monarchy progressed to that great crisis
in the civilization of those states founded by conquering Nomades,
when, after rich possessions are seized, cities built, and settlements
established, the unwieldy and enormous empire is divided into
provinces, and satrap government reflects in every district the
mingled despotism and subservience, pomp and insecurity, of the
imperial court. Darius undoubtedly took the most efficient means in
his power to cement his sway and organize his resources. For the