A special case is that of El Colegio Nacional, created during the district's governmental period of Miguel Alemán Valdés to have, in Mexico, an institution similar to the College of France. The select and privileged group of Mexican scientists and artists belonging to this institution—membership is for life—include, among many, Mario Lavista, Ruy Pérez Tamayo, José Emilio Pacheco, Marcos Moshinsky (d.2009), Guillermo Soberón Acevedo. Members are obligated to publicly disclose their works through conferences and public events such as concerts and recitals.