Hudson Institute was founded in 1961 by Herman Kahn, Max Singer, and Oscar M. Ruebhausen. In 1960, while employed at the RAND Corporation, Kahn had given a series of lectures at Princeton University on scenarios related to nuclear war. In 1960, Princeton University Press published "On Thermonuclear War", a book-length expansion of Kahn's lecture notes. Major controversies ensued, and in the end, Kahn and RAND had a parting of ways. Kahn moved to Croton-on-Hudson, New York, intending to establish a new think tank, less hierarchical and bureaucratic in its organization. Along with Max Singer, a young government lawyer who had been a RAND colleague of Kahn's, and New York attorney Oscar Ruebhausen, Kahn founded the Hudson Institute on 20 July 1961. Kahn was the Hudson's driving intellect and Singer built up the institute's organization. Ruebhausen was an advisor to New York Governor Nelson Rockefeller.