1 July 1968 June 30, 2013 Author: Staff The Nuclear non-proliferation treaty is signed in Washington, London and Moscow by 62 countries. Famous Words of Inspiration..."from Words of Wisdom Happy are those who dream dreams and are ready to pay the price to make them come true." Leon J. Suenes — Click here for more from Leon J. Suenes Related posts: 5 March 1970 8 October 1968 14 October 1968 21 January 1968 21 March 1968 4 April 1968 30 June 1968 26 April 1986 16 July 1945 1 July 2000 Categories: History Tags: 1 July, 1968