sentences:  Years later the National Pedagogic University, the National Autonomous University of Mexico, Infotec and the Secretary of Public Education built the prototype that later incorporated content from Encarta provided by Microsoft thanks to an existing collaboration agreement between the Secretary of Public Education and Microsoft.Later on the Coordination of Educational Information Technology of the ILCE (which is the responsible body for producing the free textbooks) integrated resources, activities and audiovisuals generated by projects such as Red Escolar, Biblioteca Digital, Sec 21, Sepiensa and material designed exclusively for Enciclomedia.The Enciclomedia project was ultimately abandoned.