The Hellenica Oxyrhynchia, substantial fragments of history by an anonymous 4th century writer, cover the years 410 BC and 396 BC a period which is at the heart of most students’ study of Greek history. The Oxyrhynchia are also interesting as the source for later historical writing and provide a comparison with Xenophon, giving a rare insight into how historical tradition was maintained and modified by different writers. This is the first edition to include the Cairo fragment with those of London and Florence and which offers a parallel translation and commentary to aid the student who encounters this important text for the first time.