Original sentence: Emperor Theophilos sought Bulgarian support in putting down the rebellion, but simultaneously arranged for his fleet to sail through the Danube delta and undertake a clandestine evacuation of some of the Byzantine captives settled in trans-Danubian Bulgaria by Krum and Omurtag.In retaliation Isbul campaigned along the Aegean coasts of Thrace and Macedonia and captured the city of Philippi, where he set up a surviving memorial inscription set up in a local church.Isbul's campaign may have resulted in the establishment of Bulgarian suzerainty over the Slavic tribe of the Smoljani.Presian Inscription or Philippi Inscription is a medieval Greek inscribed text upon a stone in Philippi under the Bulgarian ruler Presian I.Soon after Presian's accession the Slavs in the vicinity of Thessalonica rebelled against the Byzantine Empire in 837
Edited sentence: 836–852).Emperor Theophilos sought Bulgarian support in putting down the rebellion, but simultaneously arranged for his fleet to sail through the Danube delta and undertake a clandestine evacuation of some of the Byzantine captives settled in trans-Danubian Bulgaria by the Bulgarian rulers Krum and Omurtag.In 837, soon after Presian's accession, the Slavs in the vicinity of Thessalonica rebelled against the Byzantine Empire.In retaliation Isbul campaigned along the Aegean coasts of Thrace and Macedonia and captured the city of Philippi, where he set up a surviving memorial inscription in a local church.Isbul's campaign may also have resulted in the establishment of Bulgarian suzerainty over the local Slavic tribe of the Smoljani.The Presian Inscription or Philippi Inscription is a medieval Greek text inscribed upon a stone in Philippi during the reign of the Bulgarian ruler Presian I (r