 In the Prologue to the "Canterbury Tales", there is among the pilgrims wending their way to Canterbury, a 'Doctour of Phisyk' whose learning included Razi, Avicenna (Ibn Sina, Arabic ابن سينا) and Averroes (Ibn Rushd, Arabic ابن رشد).Ibn Sina's canon of medicine was a standard text for medical students well into the 17th century.Today Islam is the second largest religion in England.