 Another example of unity was a fatwā issued by the rector of Al-Azhar University, Mahmud Shaltut, recognizing Shia Islamic law as the fifth school of Islamic law.In 1959, al-Azhar University in Cairo, the most influential center of Sunni learning, authorized the teaching of courses of Shia jurisprudence as part of its curriculum.The year of the Iranian Islamic Revolution was "one of great ecumenical discourse", and shared enthusiasm by both Shia and Sunni Islamists.