The National Distance Education University (''Universidad Nacional de Educación a Distancia''; UNED) has as its mission the public service of higher education through the modality of distance education. At more than 205,000 students (2015), UNED has the largest student population in Spain and is one of the largest universities in Europe. Since 1972, UNED has sought to translate into action the principle of equal opportunity in access to higher education through a methodology based on the principles of distance learning and focused on the needs of the student.