625. Heraclius carries away an immense booty from Persia; he recovers Amida and Samosata.
626. Constantinople is besieged by the Persians and Avars; the siege fails. The emperor Heraclius contracts an alliance with the Turks, who, passing the Caspian gates, invade Persia.
627. Khusrau II is overwhelmed by Heraclius and his Turkish allies.
King Edwin, of Northumberland, embraces Christianity and builds the first minster of wood, at York.
628. Recovery of Jerusalem and of the presumed true Cross by Heraclius from the Persians.
Khusrau 11 deposed and slain; by treaty all the possessions captured by the Persians are restored to Rome.
630 (629). Mecca surrenders to Mahomet; he invades Palestine.
631. After many revolutions in Persia, Cesra is made king.
Dagobert I reunites the Frankish empire.
632. Death of Mahomet; his successor, Abu-Bekr, sends an army into Syria. See [THE SARACEN CONQUEST OF SYRIA], iv, 247.