Antigonus II Gonatas
About 276 BC Aratus was invited to the court of the Macedonian king Antigonus II Gonatas, whose victory over the Gauls in 277 Aratus set to verse. Here he wrote his most famous poem, "Phenomena". He then spent some time at the court of Antiochus I Soter of Syria, but subsequently returned to Pella in Macedon, where he died sometime before 240/239. His chief pursuits were medicine (which is also said to have been his profession), grammar, and philosophy.