How, what is that??? :-O Where is the "Real Biblioteca de San Lorenzo de El Escorial" in Spain??? the first great modern library in the world where converged together within its walls works of the three most important european cultures of the moment: Christian, Jewish and Muslim... and all sponsored by the king of the widest empire's territory than the earth has known ever!

http://rbme.patrimonionacional.es/

http://es.wikipedia.org/wiki/Real_Biblioteca_de_San_Lorenzo_de_El_Escorial