Passage: He wrote a history of the Diadochi and their descendants, encompassing the period from the death of Alexander to the war with Pyrrhus (323–272 BC), which is one of the chief authorities used by Diodorus Siculus (xviii.–xx.) and also by Plutarch in his life of Pyrrhus.

Question: In which years did the war with Pyrrhus occur?
323–272 BC