Founding of the International Psychoanalytical Association.
At Sandor Ferenczi's instigation the International Psychoanalytical Association is founded, with C.G. Jung as president, at the Nuremberg psychoanalytical congress. Freud writes about the congress: "With the Nuremberg parliament the childhood of our movement ends."
Freud published the analysis of Leonardo da Vinci's painting of the Virgin and St Anne under the title A Childhood Memory of Leonardo da Vinci of which he informs Lou Andreas-Salome that is it "the only beautiful thing I have ever written." [9.2.1919]
St. Anna of Leonardo da Vinci
The Virgin with St Ann by Leonardo
The lectures held in America appear as On Psychoanalysis.