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
Ptolemy of Mauretania from those during the time Ptolemy co-ruled with JubaII. His royal title on coinage is in Latin " ‘King Ptolemy’" and there is no surviving coinage that shows his royal title in Greek. On his coinage there is no Ancient Egyptian imagery. The coinage from his sole reign displays a variety of themes. Ptolemy personified himself as an elephant on coins. Elephant personification is an ancient coinage tradition in which his late parents did when they ruled Mauretania. The elephant has symbolic functions: an icon representing Africa and an iconic monetary characteristic from the Hellenistic period which displays influence and