Philip of Macedonia conquered Greece in 338 BCE. His son Alexander expanded the empire greatly, conquering Persia, Asia Minor, Egypt, and Syria before his death in 323 BCE. The empire was then divided among his generals. Hellenistic culture saw developments in realistic sculpture and melodramatic drama. Philosophy schools like the Skeptics, Cynics, Epicureans and Stoics focused on practical everyday life over rational investigation. Science and mathematics advanced, while religion incorporated mysteries from Egypt and Persia. This period expanded Greek influence and set foundations for Rome and Christianity.