epochs, during which, in the fine language of Corneille--

'Un grand destin commence, un grand destin s'acheve.'"

This extent and harmony of design is unquestionably that which
distinguishes the work of Gibbon from all other great historical
compositions. He has first bridged the abyss between ancient and modern
times, and connected together the two great worlds of history. The great
advantage which the classical historians possess over those of modern
times is in unity of plan, of course greatly facilitated by the narrower
sphere to which their researches were confined. Except Herodotus, the
great historians of Greece--we exclude the more modern compilers, like
Diodorus Siculus--limited themselves to a single period, or at least
to the contracted sphere of Grecian affairs. As far as the Barbarians
trespassed within the Grecian boundary, or were necessarily mingled
up with Grecian politics, they were admitted into the pale of Grecian
history; but to Thucydides and to Xenophon, excepting in the Persian
inroad of the latter, Greece was the world. Natural unity confined
their narrative almost to chronological order, the episodes were of rare
occurrence and extremely brief. To the Roman historians the course
was equally clear and defined. Rome was their centre of unity; and the
uniformity with which the circle of the Roman dominion spread around,
the regularity with which their civil polity expanded, forced, as it
were, upon the Roman historian that plan which Polybius announces as
the subject of his history, the means and the manner by which the whole
world became subject to the Roman sway. How different the complicated
politics of the European kingdoms! Every national history, to be
complete, must, in a certain sense, be the history of Europe; there is
no knowing to how remote a quarter it may be necessary to trace our
most domestic events; from a country, how apparently disconnected, may
originate the impulse which gives its direction to the whole course of
affairs.

In imitation of his classical models, Gibbon places Rome as the cardinal
point from which his inquiries diverge, and to which they bear constant
reference; yet how immeasurable the space over which those inquiries
range; how complicated, how confused, how apparently inextricable the
causes which tend to the decline of the Roman empire! how countless the
nations which swarm forth, in mingling and indistinct hordes, constantly
changing the geographical limi