[Pramāṇa](https://indike.org/pramana/) › [Foreign](https://indike.org/pramana/inf) › [Greek](https://indike.org/pramana/inf.gr) › [Hellenistic (323–31 BCE)](https://indike.org/pramana/inf.gr.hellenistic) › [Historians of Alexander's Indian campaign](https://indike.org/pramana/inf.gr.hellenistic.alexander-historians) › Ιστορια # Ιστορια (Ἱστορία) Ptolemy son of Lagus, History of Alexander The king of Egypt's memoir of the campaign, Arrian's main source for the siege of Aornos, the battle with Porus and the Malli campaign. - **Language:** Ancient Greek - **Date:** 301–283 BCE - **Author:** [Πτολεμαῖος ὁ Λάγου](https://indike.org/pramana/person/ptolemy-i) - **Text:** lost ## Quoted in - [Ἀλεξάνδρου ἀνάβασις](https://indike.org/pramana/inf.gr.roman.arrian.anabasis) --- Source: [https://indike.org/pramana/inf.gr.hellenistic.alexander-historians.ptolemy-lagus](https://indike.org/pramana/inf.gr.hellenistic.alexander-historians.ptolemy-lagus) · Pramāṇa