Gonzalo Capellán PhD in Modern and Contemporary History with extraodinary award. Associate Professor at Universidad de La Rioja, and formerly at Universidad del País Vasco and Cantabria, in Santander, where he was appointed Vice-Rector for Campus de Excelencia Internacional. He has been Visiting Scholar at Oxford University, Tufts (EE.UU.) and Institut Sankt Georgen in Frankfurt. Dr. Capellan has works published many as an author and editor, for example: Opinión Pública. Pasado y Presente (Madrid, Trotta, 2008), Lenguaje, Tiempo y Modernidad. Ensayos de historia conceptual (Santiago de Chile, Globo Editores, 2011) and Conceptos, tiempo e historia (McGraw-Hill / Universidad de Cantabria, 2013), these in collaboration with Javier Fernández Sebastián. He recently edited the Spanish translation of George Cornwall Lewis, Uno y abuso de ciertos términos políticos (1832), for which he wrote the introduction.