One of the bloodiest battles in the Middle Ages took place near the town in 917 when the Bulgarian Emperor Simeon I delivered a devastating blow to the Byzantine army.[1] More than 90,000 men perished in the battle, 70,000 of whom were Byzantines.[1] In the decades following the Battle of Anchialus the Bulgarian Empire entered a period of upheaval and relished a territorial extent, covering most of the Balkan peninsula.[1]
The river Aheloy flows into the Black Sea south of the town.
Aheloy was officially proclaimed a town in 2009 with a decision by the Government of Bulgaria.