Isaurian Dynasty and Early Iconoclasm (717–802)

1. Leo III seizes throne in Constantinople

   Mar 25, 717Labels: Leo III, Constantinople

   • Leo III
   • Theodosius III

2. Second Arab siege of Constantinople begins

   Jul 15, 717Labels: Umayyad Caliphate, Constantinople

   • Siege 717 718

3. Second Arab siege of Constantinople ends

   Aug 15, 718Labels: Byzantine defense, Umayyads

   • Siege 717 718

4. Constantine V crowned co-emperor

   Mar 31, 720Labels: Constantine V, Leo III

   • Constantine V

5. Ecloga law code issued

   Jan 1, 726Labels: Ecloga, Leo III

   • Britannica

6. Iconoclasm begins with Chalke Gate image removal

   Jan 1, 726Labels: Chalke Gate, Iconoclasm

   • Iconoclasm
   • Isaurians

7. Imperial ban on religious images formalized

   Jan 1, 730Labels: Leo III, Imperial council

   • Isaurians
   • Iconoclasm

8. Byzantines win Battle of Akroinon

   Jan 1, 740Labels: Battle of, Leo III

   • Akroinon

9. Artabasdos seizes power in civil war

   Jun 1, 741Labels: Artabasdos, Civil war

   • Artabasdos
   • Constantine V

10. Constantine V regains Constantinople

    Nov 2, 743Labels: Constantine V, Constantinople

    • Artabasdos

11. Leo IV crowned co-emperor

    Jun 1, 751Labels: Leo IV, Constantine V

    • Leo IV

12. Iconoclast Council of Hieria convened

    Jan 1, 754Labels: Council of, Constantine V

    • Hieria
    • Isaurians

13. Constantine VI appointed co-emperor

    Apr 24, 776Labels: Constantine VI, Leo IV

    • Isaurians
    • Constantine VI

14. Leo IV dies; Irene becomes regent

    Sep 8, 780Labels: Irene, Leo IV

    • Leo IV
    • Irene

15. Second Council of Nicaea opens

    Sep 24, 787Labels: Second Council, Irene

    • Nicaea II
    • IME

16. Second Council of Nicaea closes, restoring icon veneration

    Oct 13, 787Labels: Second Council, Icon veneration

    • Nicaea II
    • OrthoChristian

17. Irene deposes and blinds Constantine VI

    Aug 19, 797Labels: Irene, Constantine VI

    • Irene
    • Constantine VI

18. Nikephoros I crowned after palace coup

    Oct 31, 802Labels: Nikephoros I, Palace coup

    • Irene
    • Nikephoros I