Espana Post issued the stamp series of the Popular Characters on June 11, 2010 features the famous person of medical science and music which are represented by Gregorio Marañon and Julián Arcas.
Gregorio Marañón ( Madrid 1887-1960) was an eminent doctor and writer. He studied medicine at the University of Madrid and obtained a Phd in 1910. After a year of study and investigation in Germany, he returned to Madrid in 1911 where he studied endocrinology. In 1922 he became a member of the Academy of Medicine and years later founded the Institute of Medical Pathology of which he became director. He became university professor of endocrinology and published a large number of scientific works on this subject as well as the ageing process, the human behaviour and the vital processes of man besides publishing historical essays and biographies of great literary richness. He was elected Mp during the Republic but soon gave up on politics and moved to Paris during the Civil War. He returned to Madrid in 1943 and gradually resumed his medical work as well as his university and literary activities.