After the battle of Kossovo and the downfall of the Servian empire, the wild highlands of Montenegro afforded a refuge to those Servians who would not submit to the Turks but were determined to maintain their independence. It is not the place here to relate the history of the heroic struggles of this brave people against overwhelming odds, how through centuries of continual warfare, under the rule of their prince-bishops, [660] they have kept alive a free Christian state when all their brethren of the same race had been compelled to submit to Muhammadan rule. While the very basis of their separate existence as a nation was their firm adherence to the Christian faith it could hardly have been expected that Islam would have made its way among them, but in the seventeenth century many Montenegrins in the frontier districts became Muhammadans and took service with the neighbouring Pashas. But in 1703, Daniel Petrovich, the then reigning bishop, called the tribes together and told them that the only hope for their country and their faith lay in the destruction of the Muhammadans living among them. Accordingly, on Christmas Eve, all the converted Montenegrins who would not forswear Islam and embrace Christianity were massacred in cold blood. [661] To pass now to Bosnia:—in this country the religious and social conditions of the people, before the Turkish conquest, merit especial attention. The majority of the population belonged to a heretical Christian sect, called Bogomiles, who from the thirteenth century had been exposed to the persecution of the Roman Catholics and against whom Popes had on several occasions preached a Crusade. [662] In 1325, Pope John XXII wrote thus to the king of Bosnia: “To our beloved son and nobleman, Stephen, Prince of Bosnia,—knowing that thou art a faithful son of the Church, we therefore charge thee to exterminate the heretics in thy dominion, and to render aid and assistance to Fabian, our Inquisitor, forasmuch as a large multitude of heretics from many and divers parts collected hath flowed together into the principality of Bosnia, trusting there to sow their obscene errors and dwell there in safety. These men, imbued with the cunning of the Old Fiend, and armed with the venom of their falseness, corrupt the minds of Catholics by outward show of simplicity and the sham assumption of the name of Christians; their speech crawleth like a crab, and they creep in with humility, but in secret they kill, and are wolves in sheep’s clothing, covering their bestial fury as a means to deceive the simple sheep of Christ.” In the fifteenth century, the sufferings of the Bogomiles became so intolerable that they appealed to the Turks to deliver them from their unhappy condition, for the king of Bosnia and the priests were pushing the persecution of the Bogomiles to an extreme which perhaps it had never reached before; as many as forty thousand of them fled from Bosnia and took refuge in neighbouring countries; others who