955 CE: John Tzimiskes is appointed domestikos of the East in the Byzantine Empire.

969 CE: John Tzimiskes murders Nikephoros II Phokas in the imperial Byzantine palace in Constantinople.

969 CE - 976 CE: Reign of Byzantine Emperor John I Tzimiskes.

970 CE: The Treaty of Safar makes Aleppo a client state of the Byzantine Empire.

971 CE: John I Tzimiskes and the Byzantine army defeat the Rus at Dorystolon, forcing Sviatoslav and the Rus army to retreat from Bulgaria.

972 CE: John I Tzimiskes captures Nisibis and forces the Emir of Mosul to pay tribute to the Byzantine Empire.

975 CE: John I Tzimiskes invades Syria, conquering several cities and forcing neighboring Muslim states such as Damascus to pay tribute to the Byzantines.

976 CE: John I Tzimiskes dies, possibly from poisoning.