 Thucydides mentions it with Galepsus and notes that both were colonies of Thasos that sided with the Spartan army of Brasidas after it had taken Amphipolis in 424 BCE.Stephanus of Byzantium identifies it as the same Aesyme or Aisyme (Αίσύμη) named by Homer in the Iliad as the place of origin of Castianeira, mother of Gorgythion, who was fathered by Priam, king of Troy.The town is mentioned by several ancient geographers including Ptolemy and Pliny the Elder.