Ptolemy I Soter rivals after Alexander's death. For example, Arrian's account of the fall of Thebes in 335 BC ("Anabasis" , a rare section of narrative explicitly attributed to Ptolemy by Arrian) shows several significant variations from the parallel account preserved in Diodorus Siculus (17.11–12), most notably in attributing a distinctly unheroic role in proceedings to Perdiccas. More recently, J. Roisman has argued that the case for Ptolemy's blackening of Perdiccas and others has been much exaggerated. Ptolemy personally sponsored the great mathematician Euclid. He found Euclid's seminal work, the "Elements", too difficult to study, so he asked if there were an easier
Antiochus (father of Seleucus I Nicator) numerous descendants through his son from the 3rd century BC until the 5th century AD and possibly beyond. Antiochus (father of Seleucus I Nicator) Antiochus (Greek: Ἀντίοχος; fl. 4th century BC) was a Macedonian man who lived during the time of Philip II of Macedon (ruled 359-336 BC). He originally came from Orestis, Macedonia. Antiochus served as an officer under Philip II, and gained distinction as a military general. Antiochus was from an upper noble family. His father was probably called Seleucus, his brother was called Ptolemy and he probably had a nephew called Seleucus. Antiochus married a Macedonian woman