A: Washington, District of Columbia, United States, B: Brooklyn, New York, United States
On April 3, 1933 The New York Times published an article entitled and summarized in sub-headings, as follows: "Emotions Mapped by New Geography: Charts seem to Portray the Psychological Currents of Human Relationships. FIRST STUDIES EXHIBITED. Colored Lines Show Likes and Dislikes of Individuals and of Groups. MANY MISFITS REVEALED. Dr. J.L. Moreno Calculates There Are 10 to 15 Million Isolated Individuals In Nation." The article reported on an interview with Romanian-born Austrian-American psychiatrist, psychosociologist, and group psychotherapy pioneer Jacob L Moreno.
The following year Moreno published a book entitled Who Shall Survive? A New Approach to the Problem of Human Interrelations in Washington, D.C. Apart from its psychiatric and sociological significance, this work contained some of the earliest graphic depictions of social networks— data visualization methods later applied to numerous other disciplines. These images were later called sociograms. For a second edition published in New York in 1953 Moreno revised the title to Who Shall Survive? Foundations of Sociometry, Group Psychotherapy and Sociodrama.
Lima, Visual Complexity. Mapping Patterns of Information (2011) 75-76.