Avicenna

Ibn Sina (c. 980 – 22 June 1037), commonly known in the West as Avicenna (/ˌævɪˈsɛnə, ˌɑːv-/ A(H)V-iss-EN-ə), was a preeminent philosopher and physician of the Muslim world. He was a seminal figure of the Islamic Golden Age, serving in the courts of various Iranian rulers, and was influential to medieval European medical and Scholastic thought.

Often described as the father of early modern medicine, Avicenna's most famous works are The Book of Healing, a philosophical and scientific encyclopedia, and The Canon of Medicine, a medical encyclopedia that became a standard medical text at many medieval European universities and remained in use as late as 1650.

Besides philosophy and medicine, Avicenna's corpus includes writings on astronomy, alchemy, geography and geology, psychology, Islamic theology, logic, mathematics, physics, and works of poetry. His philosophy was of the Peripatetic school derived from Aristotelianism, of which he is considered among the greatest proponents within the Muslim world.

Avicenna wrote most of his philosophical and scientific works in Arabic but also wrote several key works in Persian; his poetry was written in both languages. Of the 450 works he is believed to have written, around 240 have survived, including 150 on philosophy and 40 on medicine.

Avicenna is a Latin corruption of the Arabic patronym Ibn Sīnā (ابن سينا), meaning "Son of Sina". However, Avicenna was not the son but the great-great-grandson of a man named Sina. His formal Arabic name was Abū ʿAlī al-Ḥusayn bin ʿAbdallāh bin al-Ḥasan bin ʿAlī bin Sīnā al-Balkhī al-Bukhārī (أبو علي الحسين بن عبد الله بن الحسن بن علي بن سينا البلخي البخاري).

Avicenna created an extensive corpus of works during what is commonly known as the Islamic Golden Age, in which the translations of Byzantine, Greco-Roman, Persian, and Indian texts were studied extensively. Greco-Roman (Middle Platonic, Neoplatonic, and Aristotelian) texts translated by the Kindi school were commented, redacted and developed substantially by Islamic intellectuals, who also built upon Persian and Indian mathematical systems, astronomy, algebra, trigonometry and medicine.

The Samanid Empire in the eastern part of Persia, Greater Khorasan, and Central Asia, as well as the Buyid dynasty in the western part of Persia and Iraq, provided a thriving atmosphere for scholarly and cultural development. Under the Samanids, Bukhara rivaled Baghdad for cultural capital of the Muslim world. There, Avicenna had access to the great libraries of Balkh, Khwarazm, Gorgan, Rey, Isfahan and Hamadan.

Various texts (such as the 'Ahd with Bahmanyar) show that Avicenna debated philosophical points with the greatest scholars of the time. Nizami Aruzi described how before ibn Sina left Khwarazm, he had met al-Biruni (a scientist and astronomer), Abu Nasr Mansur (a renowned mathematician), Abu Sahl 'Isa ibn Yahya al-Masihi (a respected philosopher) and ibn al-Khammar (a great physician). The study of the Quran and the Hadith also thrived, and Islamic philosophy, fiqh "jurisprudence", and kalam "speculative theology" were all further developed by ibn Sina and his opponents at this time.