590) had conquered Asia Minor.

Bethlehem, Gethsemane, and Calvary were profaned; the Holy Sepulchre had been burned, and the cross carried off amid shouts of laughter.

Magianism had insulted Christianity, and no miracle had interposed! The heavens did not roll asunder, nor did the earth open her abysses to swallow them up.

There was consternation and doubt in Christendom.
Such was the state of the Church when Mahometanism came into existence.
"There is but one God, and Mahomet is his Prophet." Such was its battle-cry and its creed, and the moral precepts of the Koran were its gospel.

There seems nothing in this to account for the mad enthusiasm and the passion for worship in its followers.