One of Ancient Greece's more well-known historians was Diodorus Siculus, author of Bibliotheca historica.

Historians know the birthplace of Diodorus Siculus because he himself mentioned it. He was born in Sicily, at a place then called Agyrium and now called Agira. No other details of his life are available.

Bibliotheca historica (Historical Library) was a very large publication, consisting of 40 books in all, divided into three sections. Fifteen of these survive.

The first six books covered the mythic origins of Greece and other ancient societies (Arabia, Egypt, India, Mesopotamia, and Scythia) and ends with the destruction of Troy; the next 11 books traced the history of Greece and the wider world from the aftermath of the Trojan War through the death of Alexander the Great; the last section continued tracing history, starting with Alexander's successors and ending with the Gallic Wars of Julius Caesar. (Historians are unsure whether the author intended to continue his work. The writings on the Gallic Wars cover only the beginning of the wars.)

The author made clear that he was drawing on the works of other historians. Among those whose material he incorporated was the famed Hellenistic historian Polybius.