But towards the beginning of the sixth century of our era the Abyssinians of Axum, a Christian people, "raised" far "above the ordinary level of African barbarism" by their religion and by their constant intercourse with Rome, succeeded in attaching to their empire a large portion of the Happy Arabia, and ruled it at first from their African capital, but afterwards by means of a viceroy, whose dependence on the Negus of Abyssinia was little more than nominal.
Abraha, an Abyssinian of high rank, being deputed by the Negus to re-establish the authority of Abyssinia over the Yemen when it was shaken by a great revolt, made himself master of the country, assumed the crown, established Abyssinians in all the chief cities, built numerous churches, especially one of great beauty at Sana, and at his death left the kingdom to his eldest son, Yaksoum.

An important Christian state was thus established in the Great Peninsula; and it was natural that Justinian should see with satisfaction, and Chosroes with some alarm, the growth of a power in this quarter which was sure to side with Rome and against Persia, if their rivalry should extend into these parts.

Justinian had hailed with pleasure the original Abyssinian conquest, and had entered into amicable relations with both the Axumites and their colonists in the Yemen.

Chosroes now resolved upon a counter movement.

He would employ the quiet secured to him by the peace of A.D.
562 in a great attack upon the Abyssinian power in Arabia.