cient history. For those,
however, who took such a view, it was impossible to see the events of
the Middle Ages in their true relations to what went before and what
came after. It was impossible to understand what went on in Italy in
the sixth century, or to explain the position of that great Roman power
which had its centre on the Bosphorus, which in the code of Justinian
left us our grandest monument of Roman law, and which for a thousand
years was the staunch bulwark of Europe against the successive
aggressions of Persian, Saracen, and Turk. It was equally impossible to
understand the rise of the Papal power, the all-important politics of
the great Saxon and Swabian emperors, the relations of mediaeval England
to the Continental powers, or the marvellously interesting growth of the
modern European system of nationalities. [Sidenote: When did the Roman
Empire come to an end?]

Since the middle of the nineteenth century the study of history has
undergone changes no less sweeping than those which have in the same
time affected the study of the physical sciences. Vast groups of facts
distributed through various ages and countries have been subjected to
comparison and analysis, with the result that they have not only thrown
fresh light upon one another, but have in many cases enabled us to
recover historic points of view that had long been buried in oblivion.
Such an instance was furnished about twenty-five years ago by Dr.
Bryce's epoch-making work on the Holy Roman Empire. Since then
historians still recognize the importance of the date 476 as that which
left the Bishop of Rome the dominant personage in Italy, and marked the
shifting of the political centre of gravity from the Palatine to the
Lateran. This was one of those subtle changes which escape notice until
after some of their effects have attracted attention. The most important
effect, in this instance, realized after three centuries, was not the
overthrow of Roman power in the West, but its indefinite extension and
expansion. The men of 476 not only had no idea that they were entering
upon a new era, but least of all did they dream that the Roman Empire
had come to an end, or was ever likely to. Its cities might be pillaged,
its provinces overrun, but the supreme imperial power itself was
something without which the men of those days could not imagine the
world as existing. It must have its divinely ordained representative in
one place if not in another. If the