THE BATTLE OF CHALONS.
285
570 — 627. The wars between the Emperors of Constantinople and the Kings of Persia, are actively continued.
622. The Mahometan era of the Hegira. Mahomet is driven from Mecca, and is received as prince of Medina.
629 — 632. Mahomet conquers Arabia.
632 — 651. The Mahometan Arabs invade and conquer Persia.
632—709. They attack the Roman Empire of the East. They conquer Syria, Egypt, and Africa.
709 — 713. They cross the Straits of Gibraltar, and invade and conquer Spain.
