Carl Gustav Jung was born on July 26, 1875 in Switzerland. He studied medicine at the University of Besel including neurology under the famous Baron Richard von Krafft-Ebing. After graduation Jung taught at the University of Zurich.

Jung met Freud in 1907; the (perhaps apocryphal) story is that when the two met, Freud was so impressed that he cancelled the rest of his appointments for that day so they could continue to talk. Their friendship started to cool in 1909 on a trip to America, apparently while the two were analyzing each others dreams with the final break happening in 1913 when Jung published Wandlungen und Symbole der Libido (translated as Psychology of the Unconscious.)

Jung passed away in 1961 in Zurich.