Technology and industry,
Celedonio Calatayud Costa was a Spanish scientist and radiologist, remembered for his achievements on radiology, radiotherapy, and electrology. He pioneered the use of radiology and electrology in Europe for both diagnostics and therapeutical purposes, introducing radiotherapy in Spain in 1906. He founded the Spanish Medical Electrology and Radiology Society, promoted the doctoral chair of Electro-radiology and was elected as the first professor to chair it at the Universidad Central. He also was the driving force behind and creator of the First National Medical Congress that took place in Madrid in 1919, precursor of the use of diathermy in gynecologic therapy, founder of the Spanish Journal of Medical Electrology and Radiology and Tribuna Médica, as well as author of many papers on electrodiagnosis, electrotherapy, roentgenology, and radiotherapy.