Qutb al-Dīn Shīrāzī (1236-1311), Persian polymath physician in the medieval period

Qutb al-Dīn Shīrāzī, a great physician in the medieval period of the Iranian Islamic age, is also called Allāma (polymath) for his extraordinary expertise in almost all fields of contemporary sciences. The peaceful and cultural environment of his hometown and family contributed to his development despite a time of horror from Mongolian repeated invasions of the Islamic countries. Shīrāzī never ceased learning and researching and migrated widely in order to find scientists to learn from them. He worked in many centres as a teacher and researcher. He practised medicine and educated students, and his books on other fields of science reflect his comprehensive mastery of most of the basic sciences and the humanities. Shīrāzī 's social and political roles make him one of the paramount of Iranian elites who contributed to the re-establishment of the Iranian-Islamic civilisation after its destruction by the Mongolians in the thirteenth century.