Thus, when Cambyses, the son of Cyrus, made his great expedition against Egypt, with the fleets of Phoenicia and Cyprus and with the camels of the Arabians, it is highly probable that Palestine itself was concerned.
But he repudiated the daughter of Aretas in order to marry Herodias and so set the Arabians against him.
Between Yemen and India the traffic till Roman times was mainly in the hands of Arabians or Indians; between Alexandria and Yemen it was carried by Greeks (Strabo ii.
In 616 it was taken by Chosroes, king of Persia; and in 6 4 o by the Arabians, under `Amr, after a siege that lasted fourteen months, during which Heraclius, the emperor of Constantinople, did not send a single ship to its assistance.
The medieval Arabians invented our system of numeration and developed algebra.