Washington DC Timeline By kylekett Feb 4, 1789 Inaugural Gowns Website Jan 1, 1800 Library of Congress Website Jan 1, 1800 White House Website Apr 27, 1812 Hope diamond Website Apr 27, 1866 Capital Building Rotunda Mar 2, 1867 Howard University Website Jan 1, 1910 Natural History Museum Website Jan 1, 1914 War Memorials Website Mar 4, 1921 Tomb of the Unknown Soldier Website Jul 20, 1969 Moon Rock Website Jan 1, 1976 Air and Space museum Website Jan 1, 1984 Computer from the 80s Website May 2, 1997 FDR Memorial Website Sep 11, 2008 911 Memorial Website Oct 6, 2011 Martin Luther King Jr. Memorial Website
