Averroes was a philosopher under which philosophical movements  such as Aristotelianism and the 13th-century philosophical movement  came into play in what other religions beside Islam?
Aristotelianism Aristotelianism ( ) is a tradition of philosophy that takes its defining inspiration from the work of Aristotle. This school of thought is in the modern sense of philosophy, covering existence, ethics, mind and related subjects. In Aristotle's time, philosophy included natural philosophy, which was replaced by modern science during the Scientific Revolution. The works of Aristotle were initially defended by the members of the Peripatetic school and later on by the Neoplatonists, who produced many commentaries on Aristotle's writings. In the Islamic Golden Age, Ibn Sina and Ibn Rushd translated the works of Aristotle into Arabic and under philosophers such as Al-Kindi, Al-Farabi, Avicenna and Averroes, Aristotelianism became a major part of early Islamic philosophy.
Catharism Catharism ( ; from the Greek: καθαροί , "katharoi", "the pure [ones]") was a Christian dualist or Gnostic revival movement that thrived in some areas of Southern Europe, particularly northern Italy and southern France, between the 12th and 14th centuries. The followers were known as Cathars and are now mainly remembered for a prolonged period of persecution by the Catholic Church which did not recognise their belief as truly Christian. It appeared in Europe in the Languedoc region of France in the 11th century and this is when the name first appears. The adherents were also sometimes known as Albigensians after the city Albi in southern France where the movement first took hold. The beliefs are believed to have been brought from Persia or the Byzantine Empire.