Abu Sahl Isa ibn Yahya al-Masihi al-Jurjani (ابو سهل عيسى بن يحيى المسيحي الگرگاني) was a Christian physician, from Gorgan, east of the Caspian Sea, in Iran. Gorgan ( Persian: گرگان Caspian: Vergen is the capital of the Golestan Province, Iran. The Caspian Sea is the largest enclosed body of water on Earth by area variously classed as the world's largest lake or a full-fledged Sea. For a topic outline on this subject see List of basic Iran topics.
He was the teacher of Avicenna. TemplateInfobox Muslim scholars --> ( Persian /ابو علی الحسین ابن عبدالله ابن سینا (born He wrote an encyclopedic treatise on medicine of one hundred chapters (al-mā'a fi-l-sanā'a al-tabi'iyyah; Arabic: المائة في الصناعة الطبيعية), which is one of the earliest Arabic works of its kind and may have been in some respects the model of Avicenna's Qanun. Arabic (ar الْعَرَبيّة (informally ar عَرَبيْ) in terms of the number of speakers is the largest living member of the Semitic language
He wrote other treatises on measles, on the plague, on the pulse, etc.
Classical (pre-modern Era The following is a non-comprehensive list of Iranian scientists and engineers that lived from antiquity up until the beginning of the modern