Mid – 7th century: Formation of the themes of Anatolikon and Armeniakon
Mid- 8th century: End of plague epidemic
Reign of Constantine V : First division of the large themes
843 : Capture and destruction of Amorion by the Arabs
10th century : Creation of the «Armenian themes»
Reign of John Tzimiskes: Creation of the large doukata - katepanata
Reign of John Tzimiskes: Complete catalogue of the themes of Asia Minor in the Taktikon Escorial
Middle of 11th century : Installation of Armenians in Cappadocia
End of 11th century : Turkish occupation and destruction of the old themes
Beginning of 12th century : First re-organisation of themes in Asia Minor (Thrakesion, Opsikiou)
Middle of 12th century : Formation of the themes of Mylasa-Melanoudion and Neokastra
1198 : Chrysobull of Alexios III in favour of Venitians
1204 : Partitio Romanie