Question: Who was born first, Celedonio Calatayud or Wilhelm Conrad Röntgen?
Sentence (from "Celedonio Calatayud"): He founded the Spanish Medical Electrology and Radiology Society (Sociedad Española de Radiología y Electrología Médicas), promoted the doctoral chair of Electro-radiology and was elected as the first professor to chair it at the Universidad Central (later renamed Complutense University of Madrid).
Relevant evidence: No