Question: What was the lifespan of the most influential figure in Islamic philosophy?

Knowledge 1: History of science
Ibn Sina (Avicenna) is regarded as the most influential philosopher of Islam. He pioneered the science of experimental medicine and was the first physician to conduct clinical trials. His two most notable works in medicine are the Kitāb al-shifāʾ ("Book of Healing") and The Canon of Medicine, both of which were used as standard medicinal texts in both the Muslim world and in Europe well into the 17th century. Amongst his many contributions are the discovery of the contagious nature of infectious diseases, and the introduction of clinical pharmacology. [SEP] Knowledge 2: Muslim world
One of the common definitions for "Islamic philosophy" is "the style of philosophy produced within the framework of Islamic culture." Islamic philosophy, in this definition is neither necessarily concerned with religious issues, nor is exclusively produced by Muslims. The Persian scholar Ibn Sina (Avicenna) (980–1037) had more than 450 books attributed to him. His writings were concerned with various subjects, most notably philosophy and medicine. His medical textbook The Canon of Medicine was used as the standard text in European universities for centuries. He also wrote The Book of Healing, an influential scientific and philosophical encyclopedia.
Knowledge 1: History of science
Ibn Sina (Avicenna) is regarded as the most influential philosopher of Islam. He pioneered the science of experimental medicine and was the first physician to conduct clinical trials. His two most notable works in medicine are the Kitāb al-shifāʾ ("Book of Healing") and The Canon of Medicine, both of which were used as standard medicinal texts in both the Muslim world and in Europe well into the 17th century. Amongst his many contributions are the discovery of the contagious nature of infectious diseases, and the introduction of clinical pharmacology. [SEP] Knowledge 2: Iran
The blossoming literature, philosophy, medicine, and art of Iran became major elements in the formation of a new age for the Iranian civilization, during the period known as the Islamic Golden Age. The Islamic Golden Age reached its peak by the 10th and 11th centuries, during which Iran was the main theater of the scientific activities. After the 10th century, Persian language, alongside Arabic, was used for the scientific, philosophical, historical, musical, and medical works, whereas the important Iranian writers, such as Tusi, Avicenna, Qotb od Din Shirazi, and Biruni, had major contributions in the scientific writing.
Knowledge 1: Muslim world
One of the common definitions for "Islamic philosophy" is "the style of philosophy produced within the framework of Islamic culture." Islamic philosophy, in this definition is neither necessarily concerned with religious issues, nor is exclusively produced by Muslims. The Persian scholar Ibn Sina (Avicenna) (980–1037) had more than 450 books attributed to him. His writings were concerned with various subjects, most notably philosophy and medicine. His medical textbook The Canon of Medicine was used as the standard text in European universities for centuries. He also wrote The Book of Healing, an influential scientific and philosophical encyclopedia. [SEP] Knowledge 2: Iran
The blossoming literature, philosophy, medicine, and art of Iran became major elements in the formation of a new age for the Iranian civilization, during the period known as the Islamic Golden Age. The Islamic Golden Age reached its peak by the 10th and 11th centuries, during which Iran was the main theater of the scientific activities. After the 10th century, Persian language, alongside Arabic, was used for the scientific, philosophical, historical, musical, and medical works, whereas the important Iranian writers, such as Tusi, Avicenna, Qotb od Din Shirazi, and Biruni, had major contributions in the scientific writing.

Answer: 980–1037