In a major series for Radio 3, we continue our journey through the Islamic Golden Age. The period ranges from 750 to 1258 CE and we'll hear about architecture, religious scholarship, medicine, innovation and philosophy. In this evening's essay, Dr Tony Street assesses the great philosopher and highly influential physician Avicenna. Born in Bukahara in 980, Avicenna was an Arabic-speaking Persian who supplanted Aristotle as the leading philosopher of all time, at least for Muslim scholars.

Producer: Sarah Taylor.