Iran commemorates national day of Avicenna, Persian polymath

Ibn Sīnā known as Avicenna (980-1037) was a Persian physician and is considered the most famous and influential philosopher and scientist of the medieval Islamic world.

Iranians also mark National Doctors' Day on August 22 to pay tribute to all the efforts made by Avicenna in his time. He was particularly renowned for his contributions to the fields of philosophy and medicine.

He wrote the Kitāb al-shifāʾ(Book of the Cure), a comprehensive philosophical and scientific encyclopedia, and Al-Qānūn fī al-ṭibb (The Canon of Medicine), which is among the most famous books in the history of medicine.