The birth anniversary of Avicenna (Persian physician and philosopher) is observed annually on August 21 in the Gregorian calendar. Avicenna, born in Bukhara in 980 CE, made significant contributions to medicine, philosophy, and the natural sciences. His renowned work, The Canon of Medicine, was taught in European universities for centuries and had a profound impact on the development of medicine and philosophy in both the Islamic world and the West. In 1977, cultural and academic authorities designated Avicenna’s birthday as a special observance in the Gregorian calendar to honor his prominent role in the history of science and global culture. This observance serves as a reminder of the contributions of Iranian scholars to the advancement of science and philosophy. On this day, conferences and academic events are held in various countries, focusing on the study and discussion of Avicenna’s works and achievements. The occasion is recognized in academic and cultural circles as a symbol of the connection between Eastern and Western scientific traditions, and is marked annually through seminars and the publication of scholarly articles.