Over the next two centuries, Cairo became a center of culture and learning that was unsurpassed in the Islamic world with the establishment of the renowned El-Azhar University and mosque.
In those same two centuries, Cairo also saw the establishment of a multitude of libraries and research centers.  
mnli hypothesis: In those same two centuries, Cairo also saw the establishment of a multitude of libraries and research centers.   premise: Over the next two centuries, Cairo became a center of culture and learning that was unsurpassed in the Islamic world with the establishment of the renowned El-Azhar University and mosque.