For centuries Russia stood outside of this religious and intellectual confederation, for her Church connected her not with Rome, but with Constantinople, and Papal Europe looked upon her as belonging to the barbarous East.  When the Mongol hosts swept over her plains, burnt her towns and villages, and finally incorporated her into the great empire of Genghis khan, the so-called Christian world took no interest in the struggle except in so far as its own safety was threatened.  And as time wore on, the barriers which separated the two great sections of Christendom became more and more formidable.  The aggressive pretensions and ambitious schemes of the Vatican produced in the Greek Orthodox world a profound antipathy to the Roman Catholic Church and to Western influence of every kind.  So strong was this aversion that when the nations of the West awakened in the fifteenth and sixteenth centuries from their intellectual lethargy and began to move forward on the path of intellectual and material progress, Russia not only remained unmoved, but looked on the new civilisation with suspicion and fear as a thing heretical and accursed.  We have here one of the chief reasons why Russia, at the present day, is in many respects less civilised than the nations of Western Europe.

But it is not merely in this negative way that the acceptance of Christianity from Constantinople has affected the fate of Russia.  The Greek Church, whilst excluding Roman Catholic civilisation, exerted at the same time a powerful positive influence on the historical development of the nation.

The Church of the West inherited from old Rome something of that logical, juridical, administrative spirit which had created the Roman law, and something of that ambition and dogged, energetic perseverance that had formed nearly the whole known world into a great centralised empire.  The Bishops of Rome early conceived the design of reconstructing that old empire on a new basis, and long strove to create a universal Christian theocratic State, in which kings and other civil authorities should be the subordinates of Christ’s Vicar upon earth.  The Eastern Church, on the contrary, has remained true to her Byzantine traditions, and has never dreamed of such lofty pretensions.  Accustomed to lean on the civil power, she has always been content to play a secondary part, and has never strenuously resisted the formation of national churches.

For about two centuries after the introduction of Christianity—­from 988 to 1240—­Russia formed, ecclesiastically speaking, part of the Patriarchate of Constantinople.  The metropolitans and the bishops were Greek by birth and education, and the ecclesiastical administration was guided and controlled by the Byzantine Patriarchs.  But from the time of the Mongol invasion, when communication with Constantinople became more difficult and educated native priests had become more numerous, this complete dependence on the Patriarch