We, the Rectors of the Universities of Burgos, León and Valladolid, hereby present the Triangular E3 International Excellence Campus (CEI Triangular – E3) project, whose motto is “The Horizons of Mankind” and with which the three Universities are to jointly apply to the 2011 call of the International Excellence Campus (CEI) Programme of the Ministry of Education. This project is the result of the collaboration of the three universities and of their commitment to a shared future, as expressed in an Alliance based on the conviction of the need of uniting our values and strengths to face the challenges of the University of the Twenty-First century.