English: Portrait painting of Ibn Sina (980 – 1037 CE), commonly known in the West as Avicenna, who was the physician and philosopher of the Muslim world, flourishing during the Islamic Golden Age (8th to 13th centuries), serving in the courts of various Persian rulers. He is often described as the father of early modern medicine.

His most famous works are The Book of Healing, a philosophical and scientific encyclopedia, and The Canon of Medicine, a medical encyclopedia which became a standard medical text at many medieval universities and remained in use until the 17th century.

Beginning with the 12th century, Avicenna’s philosophy influenced mightily the medieval and Renaissance philosophers and scholars.

Object Reference: Image in a banknote (public domain, unknown author) from Wikimedia Commons

Painting created with water colour paint, color pencils and gel pen on white paper.