31 March 1970 March 30, 2021 Author: Staff Explorer 1 re-enters the Earth’s atmosphere after 12 years in orbit. Famous Words of Inspiration..."Heroism is not only in the man, but in the occasion." Calvin Coolidge — Click here for more from Calvin Coolidge Related posts: 5 March 1970 5 March 1970 4 March 1970 4 March 1970 25 May 1966 7 October 1950 22 January 1970 17 October 1979 19 October 2003 21 July 1970 Categories: History Tags: 1970, 31 March