The Symposium on Principles of Self-Organization was held at Allerton House on 8–9 June 1960. It was a key conference in the development of cybernetics and was in many ways a continuation of the Macy Conferences. it was organised by Heinz von Foerster through the Biological Computer Laboratory based at University of Illinois at Urbana-Champaign. It was sponsored by the Information Systems Branch of the U.S. Office of Naval Research.