The advent of the First World War in August 1914 is often taken as the end-point for the long nineteenth century. In this chapter, I will argue that, for Herodotean receptions at least, the long nineteenth century should be extended until September 1922 and the conclusion of the Greco-Turkish War. While the First World War marked a crucial turning point for historiography in general (and, indeed, for society as a whole), the Greco-Turkish War had profound implications for the way that Herodotus in particular was read, interpreted and understood. It seems that the 1919–1922 conflict especially lent itself to Herodotean comparisons, throwing up Herodotean resonances and recalling Herodotean themes more vividly than other episodes during the previous five years of World War. Just as the Gallipoli campaign was often discussed in relation to the Iliad, and the British experience after the fall of Kut in Mesopotamia was described in terms of Xenophon’s Anabasis, the 1919–1922 Greco-Turkish War acquired a distinctly Herodotean flavour. But this influence did not only work in one direction.