6 December 1884 December 5, 2014 Author: Staff The Washington Monument in Washington, DC, is finished. Famous Words of Inspiration..."People with many interests live, not only longest, but happiest." George Matthew Allen — Click here for more from George Matthew Allen Related posts: 29 December 1170 6 December 2008 6 December 1907 6 December 1921 16 December 1972 Categories: History Tags: 1884, 6 December