Diodoros of Sicily (c.90–c.30 BC) spent thirty years producing an encyclopedic compendium of world history from its mythical beginnings to his own day. His is the only surviving, connected account of Greek affairs from 480/79 to 302/1. The books translated in this volume cover the years from the end of the Peloponnesian War to the aftermath of the Battle of Mantineia in 362/1. These were crucial years in the struggle for supremacy in Greece amongst the Greek states, Sparta, Athens and Thebes, before they were overtaken by the unexpected rise of Macedon. Diodoros also provides the only extant account of the career of Dionysios I of Syracuse and the Cypriot war between Persia and Evagoras of Salamis. The translation is supported by extensive notes and the Introduction examines Diodoros' moral and educational purpose in writing, the plan of his work, his sources, and his qualities as a historian.