740 Constantine (V) Copronymus succeeds his father.
742 Defeat of the rebel Artavasdes, who has obtained possession of Constantinople.
744-747 The Great Plague devastates the empire.
746 Mohammedan invasion of Cyprus.
750 Fall of the Omayyad dynasty. Two rival Saracen powers are formed. Ravenna taken by the Lombards.
751 Capture of Melitene and Theodosipolis by Constantine.
753 Invasion of Italy by Pepin. Council of Constantinople favours iconoclasm.
755 Invasion of Thrace by the Bulgarians. Pepin continues invasion of Italy.
757 The Bulgarians driven back to their own territory with great slaughter.
760-765 Constantine invades Bulgaria. Victory of Anchialus, 762.