Another sighting! The US was founded by Martians!About halfway through Appendix A of the National Park Service's "A History of the Washington Monument" there's a drawing of it being placed in it's final resting place (as far as we know), on 12/6/1886.
http://www.nps.gov/archive/wamo/history/appa3.htmAnd now it's involved in a minor scandal: http://www.snopes.com/politics/religion/lausdeo.asp
-Dale