ancient Greek historian best known for his influential history of Greece. Callisthenes was appointed to attend Alexander the Great as historian of his Asiatic expedition on the recommendation of his uncle Aristotle, who was Alexander's former tutor. In 327 BC Callisthenes offended Alexander, who had proclaimed himself divine and demanded that Greeks prostrate themselves before him in adoration (the custom of proskynesis). Callisthenes led the opposition to this practice, was falsely accused of conspiracy, and was summarily executed. His death was commemorated by his friend Theophrastus in Callisthenes; or, a Treatise on Grief.

Callisthenes wrote a 10-volume history of Greece from the peace of Antalcidas (386) to the Phocian War (355); a history of the Phocian War (or Third Sacred War); and a eulogistic account of Alexander's conquests, The Deeds of Alexander. With Aristotle he drew up a complete list of victors in the Pythian Games, which was important for ancient chronology. His works survive only in fragments. It is known that he alluded to the story of Alexander's divine birth and may have been the first to do so.