Lily and Mia By jscypinski Apr 20, 2011 Lewis and Clark left May 4,1804 Apr 28, 2011 April 30,1803 Lousiana Purchase Apr 28, 2011 gold rush May 6, 2011 1970 rail fright began May 16, 2011 On May 10, 1869, a golden spike was driven, a telegrapher signaled "Done!"