Geskenke van 15 000 medimnoi graan van koning Spartokos van Bosporos en 7 500 medimnoi van koning Audeolon van Paionia bereik die stad Athene, wat moontlik beleër gaan word.[2]
↑Haixia, Qi (2023). “Balancing in Ancient China.” Bridging Two Worlds: Comparing Classical Political Thought and Statecraft in India and China, 1st ed., vol. 4. University of California Press. pp. 267–83.
↑Shear, T. Leslie. (1978). ""Kallias of Sphettos and the Revolt of Athens in 286 B. C."". Hesperia Supplements. 17: i–122. doi:10.2307/1353933.