Carl Georg Lange (4 December 1834 – 29 May 1900) was a Danish physician who made contributions to the fields of neurology, psychiatry, and psychology. Born to a wealthy family in Vordingborg, Denmark, Lange attended medical school at the University of Copenhagen and graduated in 1859 with a reputation for brilliance. After publishing on the neurological pathologies of aphasia, bulbar palsy, tabes dorsalis, and pathologies of the spinal cord, he achieved world fame with his 1885 work "On Emotions: A Psycho-Physiological Study". In it, he posited that all emotions are developed from, and can be reduced to, physiological reactions to stimuli. Seemingly independently, the American William James had published a similar work the year before, but unlike James, Lange specifically stated that vasom