10 April 1963 April 9, 2012 Author: Staff 129 sailors die when the submarine USS Thresher sinks at sea. Famous Words of Inspiration..."If you don't know where you are going, you'll end up someplace else." Yogi Berra — Click here for more from Yogi Berra Related posts: 21 March 1963 8 April 2005 Categories: History Tags: 10 April, 1963