The History of the Peloponnesian War is a historical account of the Peloponnesian War (431–404 BC), which was fought between the Peloponnesian League, led by Sparta, and the Delian League, led by Athens. Thucydides' account of the conflict is widely considered to be a classic and regarded as one of the earliest scholarly works of history. Hellenica is direct continuation of the History of the Pelo...