The oldest copy I've seen is Feb 9 2006. Dec 04 is likely in rembrance of the Dec 21 2004 suicide bomber in a mess tent in Mosul, Forward Operating Base Marez. 22 killed, 72 injured.
https://en.wikipedia.org/wiki/2004_Forward_Operating_Base_Marez_bombing
Feb 9 2006 copy: https://www.youtube.com/watch?v=jrVJ5ee7oyA
Q used the militarytimes article post dated Jan 29 2008.