Al-Azhar

Al-Azhar is the mosque and university in Cairo founded by the Fatimid caliph-imam al-Muizz in 970 CE, shortly after the establishment of Cairo. Initially serving as a center for Ismaili learning and da'wa, it became one of the most prestigious institutions of Islamic scholarship. Today it remains one of the oldest continuously operating universities in the world, though no longer Ismaili.