Albert Imre Szent-Györgyi de Nagyrápolt was a Hungarian biochemist who won the Nobel Prize in Physiology or Medicine in 1937. He is credited with first isolating vitamin C and discovering many of the components and reactions of the citric acid cycle and the molecular basis of muscle contraction. The Nobel Prize in Physiology or Medicine 1937, announced October 28, 1937. Albert Szent-Györgyi, “for his discoveries in connection with the biological combustion processes, with special reference to vitamin C and the catalysis of fumaric acid”. Albert Szent-Györgyi: born 1893, Budapest, Austria-Hungary (now Hungary). Wiki link Data: the Nobel Foundation (CC0).