The History of the Peloponnesian War is an account of the Peloponnesian War in Ancient Greece, fought between the Peloponnesian League (led by Sparta) and the Delian League (led by Athens). It was written by Thucydides, an Athenian general who served in the war. It is widely considered a classic and regarded as one of the earliest scholarly works of history. The History was divided into eight books by editors of later antiquity.
Thomas Hobbles wrote the first English translation of the History of the Peloponnesian War; it was also the first book he published. When Hobbes visited Grantville's public library, the librarian obliquely acknowledged him for his literary work Leviathan. A confused Hobbes, who had not yet written Leviathan, or political philosophy generally, assumed she meant the History of the Peloponnesian War until she clarified the point.