Ibn Sina,Abu Ali Al-Husayn or Avicenna(born 980, Bukhara, Iran — died 1037, Hamadan) Islamic philosopher and scientist. He became physician to several sultans and also twice served as vizier. His Canon of Medicine was long a standard work in the field. He is known for his great encyclopaedia of philosophy, The Book of Healing. His other writings include The Book of Salvation and The Book of Directives and Remarks. His interpretations of Aristotle influenced European Scholasticism. His system rests on a conception of God as the necessary existent: only in God do essence (what God is) and existence (that God is) coincide.(Britannica)
The Canon was rendered completely into Latin by one man, the great 12th-century translator of Arabic scientific works, Gerard of Cremona. The vast medical encyclopedia is divided into five books dealing with the theory of medicine, the simpler drugs, special pathology and therapeutics, general diseases, and pharmacopoeia. The synergistic quality of the Canon was certainly a major factor contributing to its success, and the work soon was regarded as superior even to its sources. Avicenna's book superseded the earlier medical encyclopedias and became the most important single work on medicine in the Western world. It remained a required text in certain European medical schools until the mid-17th century, and in certain Asian countries it is influential even today.(Answers)
Ibn Sīnā is regarded as a father of early modern medicine, particularly for his introduction of systematic experimentation and quantification into the study of physiology,his discovery of the contagious nature of infectious diseases, the introduction of quarantine to limit the spread of contagious diseases, the introduction of experimental medicine, evidence-based medicine, clinical trials, randomized controlled trials, efficacy tests, clinical pharmacology, neuropsychiatry, risk factor analysis, and the idea of a syndrome, and the importance of dietetics and the influence of climate and environment on health.(Wikipedia)
George Sarton, the father of the history of science, wrote in the Introduction to the History of Science:
"One of the most famous exponents of Muslim universalism and an eminent figure in Islamic learning was Ibn Sina, known in the West as Avicenna (981-1037). For a thousand years he has retained his original renown as one of the greatest thinkers and medical scholars in history. His most important medical works are the Qanun (Canon) and a treatise on Cardiac drugs. The 'Qanun fi-l-Tibb' is an immense encyclopedia of medicine. It contains some of the most illuminating thoughts pertaining to distinction of mediastinitis from pleurisy; contagious nature of phthisis; distribution of diseases by water and soil; careful description of skin troubles; of sexual diseases and perversions; of nervous ailments."