Chalkidian League
![Macedonia and the Chalkidice](/Images/godic/202501/03/Macedonian_Kingdom0835.jpg")
The Chalkidian League (Greek:Κοινόν τῶν Χαλκιδέων, "Koinon of the Chalkideans" or Olynthians or Χαλκιδεῖς ἐπί Θρᾴκης Chalcidians in Thrace to distinguish them from Chalcidians in Euboea) was a federal state that existed on the shores of the north west Aegean from around 430 BCE until it was destroyed by Philip II of Macedon in 348 BCE.