64. Q. To whom was the work entrusted? A. To ten law-teachers, over whom the famous Tribonian presided.
65. Q. What are of special importance as among other memorable events which signalized the reign of Justinian? A. The successful wars which he waged against the Vandals in Africa and the Goths in Italy, and his expeditions to Sicily and Spain.
66. Q. Among the many edifices erected during the reign of Justinian which is the most famous? A. That of St. Sophia.
67. Q. To what epoch does the reign of Justinian partly belong? A. To the Roman epoch of the Eastern Empire.
68. Q. What does the reign of Heraklius from 610 to 641 form? A. An integral part of mediæval Hellenism.
69. Q. By what was Heraklius invited to ascend the throne, and how long did his posterity continue to reign over the empire of the East? A. The voice of the clergy, the senate, and the people invited him to ascend the throne, and his posterity till the fourth generation continued to reign over the empire of the East.
70. Q. In 627, after many brilliant actions, what defeat did Heraklius inflict upon the Persians? A. So severe a defeat that their empire was nearly crushed.
71. Q. Almost at the same time what unexpected and more terrible opponent arose in the Arabian peninsula whose conflict with Hellenism continues to the present day? A. Mohammedanism.
72. Q. What did the Mohammedans of Arabia wrest from the empire? A. Syria, Egypt, and Northern Africa.
73. Q. What was the Mohammedan religion called, and to what two dogmas was it limited? A. Islam, meaning devotion; its dogmas were the belief in a future life, and the unity of God.