The history of the Byzantine Empire divides itself into three periods strongly marked by distinct characteristics. The first commences with the reign of Leo III., the Isaurian, in 716, and terminates with that of Michael III., in 867. It comprises the whole history of the predominance of iconoclasm in the established church, of the reaction which reinstated the Orthodox in power, and restored the worship of pictures and images.
It opens with the effort by which Leo and the people of the empire saved the Roman law and the Christian religion from the conquering Saracen. It embraces the long and violent struggle between the government and the people, the emperors seeking to increase the central power by annihilating every local franchise, and to constitute themselves the fountains of ecclesiastical as completely as of civil legislation.
The second period begins with the reign of Bazil I., in 867, and during two centuries the imperial sceptre was retained by members of his family. At this time the Byzantine Empire attained its highest pitch of external power and internal prosperity. The Saracens were pursued into the plains of Syria, the Bulgarian monarchy was conquered, the Slavonians in Greece were almost exterminated, Byzantine commerce filled the whole of the Mediterranean. But the real glory of the period consisted in the respect for the administration of justice which purified society more generally than it had ever done at any preceding era of the history of the world.
The third period extends from the accession of Isaac I., in 1057, to the conquest of the Byzantine Empire by the Crusaders, in 1204. This is the true period of the decline and fall of the Eastern Empire. The separation of the Greek and Latin churches was accomplished. The wealth of the empire was dissipated, the administration of justice corrupted, and the central authority lost all control over the population.
But every calamity of this unfortunate period sinks into insignificance compared with the destruction of the greater part of the Greek race by the savage incursions of the Seljouk Turks in Asia Minor. Then followed the Crusades, the first three inflicting permanent evils on the Greek race; while the fourth, which was organised in Venice, captured and plundered Constantinople. A treaty entered into by the conquerors put an end to the Eastern Roman Empire, and Baldwin, Count of Flanders, was elected emperor of the East. The conquest of Constantinople restored the Greeks to a dominant position in the East; but the national character of the people, the political constitution of the imperial government, and the ecclesiastical hierarchy of the Orthodox Church were all destitute of every theory and energetic practice necessary for advancing in a career of improvement.
Towards the end of the thirteenth century a small Turkish tribe made its first appearance in the Seljouk Empire. Othman, who gave his name to this new band of immigrants, and his son, Orkhan, laid the foundation of the institutions and power of the Othoman Empire. No nation ever increased so rapidly from such small beginnings, and no government ever constituted itself with greater sagacity than the Othoman; but no force or prudence could have enabled this small tribe of nomads to rise with such rapidity to power if it had not been that the Greek nation and its emperors were paralysed by political and moral corruption. Justice was dormant in the state, Christianity was torpid in the Church, orthodoxy performed the duties of civil liberty, and the priest became the focus of political opposition. By the middle of the fourteenth century the Othoman Turks had raided Thrace, Macedonia, the islands of the Aegean, plundered the large town of Greece, and advanced to the shores of the Bosphorus.
At the end of the fourteenth century John VI. asked for efficient military aid from Western Europe to avert the overthrow of the Greek Empire by the Othoman power, but the Pope refused, unless John consented to the union of the Greek and Latin Churches and the recognition of the papal supremacy. In 1438 the Council of Ferrara was held, and was transferred in the following year to Florence, when the Greek emperor and all the bishops of the Eastern Church, except the bishop of Ephesus, adopted the doctrines of the Roman Church, accepted the papal supremacy, and the union of the two Churches was solemnly ratified in the cathedral of Florence on July 6, 1439. But little came of the union. The Pope forgot to sent a fleet to defend Constantinople; the Christian princes would not fight the battles of the Greeks.
Then followed the conquest, in May 1453, of Constantinople, despite a desperate resistance, by Mohammed II., who entered his new capital, riding triumphantly past the body of the Emperor Constantine. Mohammed proceeded at once to the church of St. Sophia, where, to convince the Greeks that their Orthodox empire was extinct, the sultan ordered a moolah to ascend the Bema and address a sermon to the Mussulmans announcing that St. Sophia was now a mosque set apart for the prayers of true believers. The fall of Constantinople is a dark chapter in the annals of Christianity. The death of the unfortunate Constantine, neglected by the Catholics and deserted by the Orthodox, alone gave dignity to the final catastrophe.
III.--Othoman and Venetian
The conquest of Greece by Mohammed II. was felt to be a boon by the greater part of the population. The sultan's government put an end to the injustices of the Greek emperors and the Frank princes, dukes, and signors who for two centuries had rendered Greece the scene of incessant civil wars and odious oppression, and whose rapacity impoverished and depopulated the country. The Othoman system of administration was immediately organised. Along with it the sultan imposed a tribute of a fifth of the male children of his Christian subjects as a part of that tribute which the Koran declared was the lawful price of toleration to those who refused to embrace Islam. Under these measures the last traces of the former political institutions and legal administration of Greece were swept away.