Byzantine–Bulgar Wars and Northern Frontier Conflicts (811–1018)

1. Krum captures Serdica (Sofia)

   Mar 1, 809Labels: Khan Krum, Serdica, Bulgaria

   • Siege Serdica
   • Britannica Krum

2. Byzantines annihilated at the Battle of Pliska

   Jul 26, 811Labels: Battle of, Emperor Nikephoros, Khan Krum

   • Battle Pliska
   • Britannica Krum

3. Byzantine defeat at Versinikia opens road to Constantinople

   Jun 22, 813Labels: Versinikia, Emperor Michael, Khan Krum

   • Versinikia
   • Britannica Krum

4. Krum camps before Constantinople in first siege attempt

   Jul 17, 813Labels: Khan Krum, Constantinople, Siege

   • Siege 813
   • Britannica Krum

5. Krum dies during preparations for renewed Constantinople assault

   Apr 13, 814Labels: Khan Krum, Bulgaria

   • Britannica Krum
   • Siege 813

6. Thirty-year peace concluded in the Treaty of 815

   Jan 1, 815Labels: Treaty of, Khan Omurtag, Emperor Leo

   • Treaty 815
   • Browning Table

7. Simeon I crushes Byzantines at the Battle of Achelous

   Aug 20, 917Labels: Simeon I, Battle of, Bulgaria

   • Achelous 917
   • Simeon I

8. Bulgarian victory at Katasyrtai near Constantinople

   Oct 1, 917Labels: Katasyrtai, Simeon I, Byzantium

   • Katasyrtai
   • Simeon I

9. Peace settlement reached in the Byzantine–Bulgarian Treaty of 927

   Nov 1, 927Labels: Treaty of, Simeon I, Bulgarian Church

   • Treaty 927
   • War 913 927

10. Byzantines defeat Rus’-Bulgar coalition at Arcadiopolis

    Mar 1, 970Labels: Arcadiopolis, Bardas Skleros, Rus'

    • Arcadiopolis 970
    • Sviatoslav Invasion

11. Siege of Dorostolon ends Rus’ war and shifts frontier politics

    Jul 1, 971Labels: Dorostolon, John I, Rus'

    • Dorostolon 971
    • PresLib 971

12. Basil II wins decisive victory at the Battle of Kleidion

    Jul 29, 1014Labels: Battle of, Basil II, Tsar Samuel

    • Kleidion
    • Basil II

13. Byzantines defeat Ivan Vladislav at Setina

    Oct 1, 1017Labels: Setina, Basil II, Ivan Vladislav

    • Setina 1017
    • Basil II

14. Bulgarian submission completes Byzantine conquest

    Jan 1, 1018Labels: Byzantine conquest, First Bulgarian, Basil II

    • Basil II
    • Kleidion