For the first time since Antiochus I's flight westwards after his father's death in 281 BCE, we're going to see the Seleucids intervene in Europe and attempt to win back some territory on the other side of the Bosporus. Specifically, we're going to focus on Antiochus II's hostility with Byzantium (the settlement which will become Constantinople about six hundred years from now)- as well as a campaign fought in Thrace.

Sources for this episode: 1) Bevan, E. R. (1902), The House of Seleucus (Vol. I). London: Edward Arthur. 2) Ehrlich, B., Encyclopaedia Britannica (2021), Istanbul (online) [Accessed 01/08/2021]. 3) Grainger, J. D., (2014), The Rise of the Seleukid Empire (323- 223 BCE), Seleukos I to Seleukos III. Barnsley: Pen & Sword Books Ltd. (eBook) [Accessed 04/01/2021]. 4) Ilıev, J. (2013), The Campaign of Antiochus II in Thrace, History Studies International Journal of History 5(1): 211- 222. 5) Author unknown, Wikipedia (date unknown), Cypsela (Thrace) 6) Author unknown, Wikipedia (date unknown) Polyaenus (online) [Accessed 09/08/2021].