_Bulgaria._--In the seventh century Slavs had begun to settle in Bulgaria. The Bulgars or Volgars followed. They were akin to the Tartars and the Turks. Together Slavs and Bulgars formed the Bulgarian national type and founded a very robust nation which was almost constantly at war with the Greek Empire (with its capital at Constantinople). At times Bulgaria seriously threatened Constantinople and the Greek Empire. A boastful inscription in the Church of the Forty Martyrs at Tirnovo, the ancient capital of Bulgaria, records: In the year 1230, I, John Asên, Czar and Autocrat of the Bulgarians, obedient to God in Christ, son of the old Asên, have built this most worthy church from its foundations, and completely decked it with paintings in honour of the Forty holy Martyrs, by whose help, in the 12th year of my reign, when the Church had just been painted, I set out to Roumania to the war and smote the Greek army and took captive the Czar Theodore Komnenus with all his nobles. And all lands have I conquered from Adrianople to Durazzo, the Greek, the Albanian, and the Serbian land. Only the towns round Constantinople and that city itself did the Franks hold; but these too bowed themselves beneath the hand of my sovereignty, for they had no other Czar but me, and prolonged their days according to my will, as God had so ordained. For without him no word or work is accomplished. To him be honour for ever. Amen. The wars were carried on under conditions of mutual ferocity which still rule in Bulgarian-Grecian conflicts. An incident of one campaign was that the Greek Emperor, Basil, the Bulgar-slayer, having captured a Bulgarian army, had the eyes torn out of all the men and sent them home blinded, leaving, however, one eye to every centurion, so that the poor mutilated wretches might have guides. In the early part of the fourteenth century a Bulgarian Czar, Michael, almost captured Constantinople. He formed a league with the Roumanians and the Greeks against the Serbs, who were at the time promising to become the paramount power of the peninsula. But Czar Michael was defeated by the Serbs and Bulgaria became dependent upon Serbia, which was the position of affairs at the time of the first serious Turkish invasion of the Balkan Peninsula.